Examples with solutions for Solving Equations Using All Methods: Equations with variables on both sides

Exercise #1

Solve for X:

x+34x=5x+618x x+3-4x=5x+6-1-8x

Video Solution

Step-by-Step Solution

To solve the given problem, we'll proceed as follows:

  • Step 1: Simplify both sides of the equation.
  • Step 2: Check if x x can be isolated or analyze if the equation results in contradictions.

Now, let's work through each step:
Step 1: Simplify the left side: x+34x=(1x4x)+3=3x+3 x + 3 - 4x = (1x - 4x) + 3 = -3x + 3 .
Step 2: Simplify the right side: 5x+618x=(5x8x)+(61)=3x+5 5x + 6 - 1 - 8x = (5x - 8x) + (6 - 1) = -3x + 5 .

The simplified equation becomes:

3x+3=3x+5-3x + 3 = -3x + 5

To solve for x x , we attempt to isolate x x . If we add 3x 3x to both sides to eliminate the 3x-3x terms, we get:

3=53 = 5

This results in a contradiction, as 3 is not equal to 5, indicating that there is no value of x x that can satisfy this equation.

Therefore, the solution to the problem is no solution as indicated by the contradiction.

Answer

No solution

Exercise #2

Find the value of the parameter X

3x+811=40x+5x+9 -3x+8-11=40x+5x+9

Video Solution

Step-by-Step Solution

To solve the equation 3x+811=40x+5x+9 -3x + 8 - 11 = 40x + 5x + 9 , we need to combine and simplify terms:

  • Simplify each side separately. Start with the right side: 40x+5x+9=45x+9 40x + 5x + 9 = 45x + 9 .
  • Now simplify the left side: 3x+811=3x3 -3x + 8 - 11 = -3x - 3 .

The equation is now: 3x3=45x+9 -3x - 3 = 45x + 9 . Next, move all x x -terms to one side and constants to the other side:

  • Add 3x 3x to both sides: 3x3+3x=45x+9+3x -3x - 3 + 3x = 45x + 9 + 3x , which simplifies to: 3=48x+9 -3 = 48x + 9 .

Then, move the constant term 9 9 to the left side:

  • Subtract 9 9 from both sides: 39=48x+99 -3 - 9 = 48x + 9 - 9 , which simplifies to: 12=48x -12 = 48x .
  • Solve for x x by dividing both sides by 48: x=1248 x = \frac{-12}{48} .
  • Simplify the fraction: x=14 x = -\frac{1}{4} .

Therefore, the solution to the problem is x=14 x = -\frac{1}{4} .

Answer

14 -\frac{1}{4}

Exercise #3

Solve the following problem:

2x+75x12=8x+3 2x+7-5x-12=-8x+3

Video Solution

Step-by-Step Solution

In order to solve this exercise, we first need to identify that we have an equation with an unknown.

To solve such equations, the first step will be to arrange the equation so that on one side we have the numbers and on the other side the unknowns.

2X+75X12=8X+3 2X+7-5X-12=-8X+3

First, we'll move all unknowns to one side.
It's important to remember that when moving terms, the sign of the number changes (from negative to positive or vice versa).

2X+75X12+8X=3 2X+7-5X-12+8X=3

Now we'll do the same thing with the regular numbers.

2X5X+8X=37+12 2X-5X+8X=3-7+12

In the next step, we'll calculate the numbers according to the addition and subtraction signs.

2X5X=3X 2X-5X=-3X
3X+8X=5X -3X+8X=5X

37=4 3-7=-4
4+12=8 -4+12=8

5X=8 5X=8

At this stage, we want to reach a state where we have only one X X , not 5X 5X ,
Thus we'll divide both sides of the equation by the coefficient of the unknown (in this case - 5).

X=85 X={8\over5}

Answer

x=85 x=\frac{8}{5}

Exercise #4

Find the value of the parameter X

746x+3=8x+5x18 74-6x+3=8x+5x-18

Video Solution

Step-by-Step Solution

To solve for x x in the equation 746x+3=8x+5x18 74 - 6x + 3 = 8x + 5x - 18 , follow these steps:

  • Step 1: Simplify both sides of the equation.

On the left side:

746x+3=776x 74 - 6x + 3 = 77 - 6x (Combining the constants)

On the right side:

8x+5x18=13x18 8x + 5x - 18 = 13x - 18 (Combining the x x terms)

  • Step 2: Set the simplified expressions equal.

776x=13x18 77 - 6x = 13x - 18

  • Step 3: Rearrange the equation to isolate terms with x x .

Adding 6x 6x to both sides:

77=13x+6x18 77 = 13x + 6x - 18

77=19x18 77 = 19x - 18 (Combining the x x terms)

  • Step 4: Solve for x x .

Adding 18 to both sides to get rid of the constant on the right:

77+18=19x 77 + 18 = 19x

95=19x 95 = 19x

Dividing both sides by 19 to solve for x x :

x=9519=5 x = \frac{95}{19} = 5

Thus, the solution to the equation is x=5 x = 5 .

Answer

5 5

Exercise #5

Solve for X:

54x36x+34=39+5x18 54x-36x+34=39+5x-18

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Simplify both sides of the given equation.
  • Step 2: Isolate the variable x x on one side of the equation.
  • Step 3: Solve for x x .

Now, let's work through each step:

Step 1: Simplify both sides of the equation.

The original equation is 54x36x+34=39+5x18 54x - 36x + 34 = 39 + 5x - 18 .

On the left side, combine like terms: 54x36x=18x 54x - 36x = 18x .

So, the equation becomes 18x+34=39+5x18 18x + 34 = 39 + 5x - 18 .

Simplify the right side: 3918=21 39 - 18 = 21 .

This gives us 18x+34=21+5x 18x + 34 = 21 + 5x .

Step 2: Isolate the variable x x on one side.

Subtract 5x 5x from both sides to get all x x terms on one side:

18x5x+34=21 18x - 5x + 34 = 21 .

This simplifies to 13x+34=21 13x + 34 = 21 .

Subtract 34 from both sides to move constant terms to the other side:

13x=2134 13x = 21 - 34 .

This simplifies to 13x=13 13x = -13 .

Step 3: Solve for x x .

Divide both sides by 13 to solve for x x :

x=1313 x = \frac{-13}{13} .

This simplifies to x=1 x = -1 .

Therefore, the solution to the problem is x=1 x = -1 .

Answer

1 -1

Exercise #6

Solve for X:

36x52+8x=19x+5431 36x-52+8x=19x+54-31

Video Solution

Step-by-Step Solution

To solve this equation, we'll proceed as follows:

  • Step 1: Simplify both sides of the equation by combining like terms.
  • Step 2: Move all terms with x x to one side of the equation.
  • Step 3: Isolate the variable x x and solve for it.

Now, let's follow these steps in detail:

Step 1: Simplify each side of the equation by combining like terms.

Left side: 36x52+8x 36x - 52 + 8x simplifies to (36x+8x)52=44x52 (36x + 8x) - 52 = 44x - 52 .

Right side: 19x+5431 19x + 54 - 31 simplifies to 19x+(5431)=19x+23 19x + (54 - 31) = 19x + 23 .

Thus, the equation becomes:

44x52=19x+23 44x - 52 = 19x + 23

Step 2: Move all x x terms to one side.

Subtract 19x 19x from both sides:

44x19x52=23 44x - 19x - 52 = 23

This simplifies to:

25x52=23 25x - 52 = 23

Step 3: Isolate the variable x x .

Add 52 to both sides:

25x=23+52 25x = 23 + 52

This gives 25x=75 25x = 75 .

Finally, divide both sides by 25:

x=7525 x = \frac{75}{25}

Thus, x=3 x = 3 .

Therefore, the solution to the problem is x=3 x = 3 , which corresponds to choice 2.

Answer

3 3

Exercise #7

Solve for X:

22x+354x=318+10x -22x+35-4x=31-8+10x

Video Solution

Step-by-Step Solution

Let's solve the equation step by step:

Given equation: 22x+354x=318+10x -22x + 35 - 4x = 31 - 8 + 10x .

First, simplify both sides by combining like terms.

On the left side:

  • Combine all terms with x x : 22x4x=26x -22x - 4x = -26x .
  • The constant term remains: +35 +35 .
  • So, the left side simplifies to: 26x+35 -26x + 35 .

On the right side:

  • Simplify constants: 318=23 31 - 8 = 23 .
  • The term with x x remains: +10x +10x .
  • So, the right side simplifies to: 23+10x 23 + 10x .

The equation now is: 26x+35=23+10x -26x + 35 = 23 + 10x .

Next, move all terms involving x x to one side and constant terms to the other side:

  • Subtract 10x 10x from both sides: 26x10x+35=23 -26x - 10x + 35 = 23 .
  • Combine like terms: 36x+35=23 -36x + 35 = 23 .

Now, isolate the x x term:

  • Subtract 35 from both sides: 36x=2335 -36x = 23 - 35 .
  • Simplify the constants: 36x=12 -36x = -12 .

Finally, solve for x x by dividing both sides by 36-36:

  • x=1236 x = \frac{-12}{-36} .
  • Which simplifies to: x=13 x = \frac{1}{3} .

Therefore, the solution to the problem is x=13 x = \frac{1}{3} .

Answer

13 \frac{1}{3}

Exercise #8

Solve for X:

45+3x+99=5x+11x+2 -45+3x+99=5x+11x+2

Video Solution

Step-by-Step Solution

To solve the equation 45+3x+99=5x+11x+2 -45 + 3x + 99 = 5x + 11x + 2 , we'll proceed as follows:

Step 1: Combine like terms on both sides of the equation.

  • The left side becomes: 3x+9945=3x+54 3x + 99 - 45 = 3x + 54 .
  • The right side combines terms with x x : 5x+11x=16x 5x + 11x = 16x . Thus, the right side is 16x+2 16x + 2 .

The equation now looks like this: 3x+54=16x+2 3x + 54 = 16x + 2 .

Step 2: Move all terms involving x x to one side and constant terms to the other side.

Subtract 3x 3x from both sides to begin isolating x x :

  • This gives: 54=16x3x+2 54 = 16x - 3x + 2 , simplifying to 54=13x+2 54 = 13x + 2 .

Step 3: Isolate x x .

  • Subtract 2 2 from both sides: 542=13x 54 - 2 = 13x .
  • This simplifies to 52=13x 52 = 13x .
  • Divide both sides by 13 to solve for x x : x=5213 x = \frac{52}{13} .

Finally, simplify 5213=4 \frac{52}{13} = 4 .

Therefore, the solution to the problem is x=4 x = 4 .

Answer

4 4

Exercise #9

Find the value of the parameter X

33x+4558=38x+14415 -33x+45-58=38x+144-15

Video Solution

Step-by-Step Solution

To solve the equation 33x+4558=38x+14415 -33x + 45 - 58 = 38x + 144 - 15 , we will simplify both sides:

  • First, combine like terms on the left side: 4558=13 45 - 58 = -13 .
  • This gives us: 33x13=38x+14415 -33x - 13 = 38x + 144 - 15 .
  • Now, simplify the right side: 14415=129 144 - 15 = 129 .
  • The equation now is: 33x13=38x+129 -33x - 13 = 38x + 129 .

Next, we'll move all x x -terms to one side:

  • Add 33x 33x to both sides: 33x+33x13=38x+33x+129 -33x + 33x - 13 = 38x + 33x + 129 .
  • This simplifies to: 13=71x+129 -13 = 71x + 129 .

Now, isolate the x x -term:

  • Subtract 129 from both sides: 13129=71x -13 - 129 = 71x .
  • This results in: 142=71x -142 = 71x .

Finally, solve for x x by dividing both sides by 71:

  • x=14271 x = -\frac{142}{71} .
  • Simplifying this fraction: x=2 x = -2 .

The correct value of x x is x=2 x = -2 . This corresponds to choice 3.

Answer

2 -2

Exercise #10

Find the value of the parameter X

31+48x+46=83x85+15x -31+48x+46=83x-85+15x

Video Solution

Step-by-Step Solution

To solve the given linear equation 31+48x+46=83x85+15x -31 + 48x + 46 = 83x - 85 + 15x , we'll follow these steps:

  • Step 1: Simplify both sides by combining like terms.
  • Step 2: Move all x x -terms to one side and constant terms to the other.
  • Step 3: Solve for x x .

Now, let's work through each step:

Step 1: Simplify both sides of the equation:
On the left side, combine like terms: 31+46=15 -31 + 46 = 15 . Thus, the left side becomes 15+48x 15 + 48x .
On the right side, combine the x x -terms: 83x+15x=98x 83x + 15x = 98x . The right side becomes 98x85 98x - 85 .

The equation now reads: 15+48x=98x85 15 + 48x = 98x - 85 .

Step 2: Move all x x -terms to one side and constant terms to the other:
Subtract 48x 48x from both sides: 15=98x48x85 15 = 98x - 48x - 85 .
Simplify the x x -terms: 98x48x=50x 98x - 48x = 50x . Thus, 15=50x85 15 = 50x - 85 .

Add 85 to both sides: 15+85=50x 15 + 85 = 50x , resulting in 100=50x 100 = 50x .

Step 3: Solve for x x by dividing both sides by 50:
x=10050=2 x = \frac{100}{50} = 2 .

Therefore, the solution to the problem is x=2 x = 2 .

Answer

2 2

Exercise #11

Solve for X:

15x23+14x=34x35+15 \frac{1}{5}x-\frac{2}{3}+\frac{1}{4}x=\frac{3}{4}x-\frac{3}{5}+\frac{1}{5}

Video Solution

Step-by-Step Solution

To solve the equation 15x23+14x=34x35+15 \frac{1}{5}x - \frac{2}{3} + \frac{1}{4}x = \frac{3}{4}x - \frac{3}{5} + \frac{1}{5} , we will follow these steps:

  • Step 1: Combine like terms on both sides.

  • Step 2: Move all x x -related terms to one side and constant terms to the other side.

  • Step 3: Solve for x x .

Let's apply these steps:

Step 1: Combine Like Terms
On the left side: 15x+14x=420x+520x=920x \frac{1}{5}x + \frac{1}{4}x = \frac{4}{20}x + \frac{5}{20}x = \frac{9}{20}x
The left side becomes: 920x23 \frac{9}{20}x - \frac{2}{3} .
On the right side: 34x=1520x \frac{3}{4}x = \frac{15}{20}x , leaving 1520x35+15 \frac{15}{20}x - \frac{3}{5} + \frac{1}{5} .
Combine constants: 35+15=25 -\frac{3}{5} + \frac{1}{5} = -\frac{2}{5} , so the right becomes: 1520x25 \frac{15}{20}x - \frac{2}{5} .

Step 2: Isolate x x Terms
Rearrange the equation: 920x23=1520x25 \frac{9}{20}x - \frac{2}{3} = \frac{15}{20}x - \frac{2}{5} .
Add 23 \frac{2}{3} to both sides:
920x=1520x25+23 \frac{9}{20}x = \frac{15}{20}x - \frac{2}{5} + \frac{2}{3} .

Convert 25-\frac{2}{5} and 23\frac{2}{3} to common denominators:
25=2460-\frac{2}{5} = -\frac{24}{60} and 23=4060\frac{2}{3} = \frac{40}{60}.
So, 25+23=1660=415-\frac{2}{5} + \frac{2}{3} = \frac{16}{60} = \frac{4}{15}.

Thus, we have:
920x=1520x+415 \frac{9}{20}x = \frac{15}{20}x + \frac{4}{15} .

Subtract 1520x \frac{15}{20}x from both sides:
920x1520x=415 \frac{9}{20}x - \frac{15}{20}x = \frac{4}{15} .
This simplifies to 620x=415-\frac{6}{20}x = \frac{4}{15}, or 310x=415-\frac{3}{10}x = \frac{4}{15}.

Step 3: Solve for x x
Multiply both sides by 10/3-10/3:
x=415×103 x = \frac{4}{15} \times -\frac{10}{3} .
This results in x=4045 x = -\frac{40}{45} , which simplifies to 89 -\frac{8}{9} .

Therefore, the solution to the problem is x=89 x = -\frac{8}{9} .

Answer

89 -\frac{8}{9}

Exercise #12

Solve for X.

38x+15610=1025+13x78x \frac{3}{8}x+\frac{1}{5}-\frac{6}{10}=-\frac{10}{25}+\frac{1}{3}x-\frac{7}{8}x

Video Solution

Step-by-Step Solution

To solve the equation 38x+15610=1025+13x78x \frac{3}{8}x+\frac{1}{5}-\frac{6}{10}=-\frac{10}{25}+\frac{1}{3}x-\frac{7}{8}x , we'll proceed with the following steps:

  • Step 1: Simplify each side separately.
  • Step 2: Combine like terms.
  • Step 3: Isolate the variable x x and solve.

Let's simplify each side of the equation:

The left side:

38x+15610 \frac{3}{8}x + \frac{1}{5} - \frac{6}{10} . Here, 610=35 \frac{6}{10} = \frac{3}{5} .

Thus, the left side becomes 38x+1535=38x25 \frac{3}{8}x + \frac{1}{5} - \frac{3}{5} = \frac{3}{8}x - \frac{2}{5} .

The right side:

1025+13x78x -\frac{10}{25} + \frac{1}{3}x - \frac{7}{8}x . First simplify the constant term: 1025=25 -\frac{10}{25} = -\frac{2}{5} .

Combine like terms involving x x : 13x78x=(1378)x \frac{1}{3}x - \frac{7}{8}x = \left(\frac{1}{3} - \frac{7}{8}\right)x.

To combine the terms, find a common denominator (24), and we get:

13=824 \frac{1}{3} = \frac{8}{24} and 78=2124 \frac{7}{8} = \frac{21}{24} .

Thus, 824x2124x=1324x \frac{8}{24}x - \frac{21}{24}x = -\frac{13}{24}x .

So, the right side simplifies to 251324x -\frac{2}{5} - \frac{13}{24}x .

Overall equation now is:

38x25=251324x \frac{3}{8}x - \frac{2}{5} = -\frac{2}{5} - \frac{13}{24}x .

Add 1324x \frac{13}{24}x to both sides to collect all terms involving x x on one side:

38x+1324x=25+25 \frac{3}{8}x + \frac{13}{24}x = -\frac{2}{5} + \frac{2}{5} .

The right side is zero, so the left side becomes:

38x+1324x \frac{3}{8}x + \frac{13}{24}x requires finding a common denominator (24):

38x=924x \frac{3}{8}x = \frac{9}{24}x .

Thus, it becomes: 924x+1324x=2224x=0 \frac{9}{24}x + \frac{13}{24}x = \frac{22}{24}x = 0 .

Since 2224x=0 \frac{22}{24}x = 0 , dividing both sides by 2224 \frac{22}{24} :

x=0 x = 0 .

Therefore, the solution is x=0 x = 0 , which corresponds to choice 1.

Answer

0 0

Exercise #13

Solve for X:

78x+1713=23+58x14x -\frac{7}{8}x+\frac{1}{7}-\frac{1}{3}=\frac{2}{3}+\frac{5}{8}x-\frac{1}{4}x

Video Solution

Step-by-Step Solution

Let's proceed with solving the equation step-by-step:

Given Equation: 78x+1713=23+58x14x-\frac{7}{8}x + \frac{1}{7} - \frac{1}{3} = \frac{2}{3} + \frac{5}{8}x - \frac{1}{4}x.

Step 1: Combine like terms on the right side of the equation.
On the right: 58x14x=58x28x=38x\frac{5}{8}x - \frac{1}{4}x = \frac{5}{8}x - \frac{2}{8}x = \frac{3}{8}x.

Therefore, the equation becomes:
78x+1713=23+38x-\frac{7}{8}x + \frac{1}{7} - \frac{1}{3} = \frac{2}{3} + \frac{3}{8}x.

Step 2: Move all the terms involving xx to one side and constant terms to the other side:
78x38x=2317+13-\frac{7}{8}x - \frac{3}{8}x = \frac{2}{3} - \frac{1}{7} + \frac{1}{3}.

Combine the terms involving xx:
108x=2317+13-\frac{10}{8}x = \frac{2}{3} - \frac{1}{7} + \frac{1}{3}.

Step 3: Simplify constants on the right side:
Combine constants on the right: 23+13=1\frac{2}{3} + \frac{1}{3} = 1
Thus, 117=7717=671 - \frac{1}{7} = \frac{7}{7} - \frac{1}{7} = \frac{6}{7}.

Now the equation is:
108x=67-\frac{10}{8}x = \frac{6}{7}.

Step 4: Simplify the coefficient of xx:
108=54-\frac{10}{8} = -\frac{5}{4}.
So the equation simplifies to:
54x=67-\frac{5}{4}x = \frac{6}{7}.

Step 5: Solve for xx by multiplying both sides by the reciprocal of 54-\frac{5}{4}:
x=67×(45)x = \frac{6}{7} \times \left(-\frac{4}{5}\right).

Step 6: Calculate the value of xx:
x=2435x = -\frac{24}{35}.

Therefore, the solution to the equation is x=2435x = -\frac{24}{35}.

Given the provided choices, the correct answer is choice 4: 2435 -\frac{24}{35} .

Answer

2435 -\frac{24}{35}

Exercise #14

Solve for X:

1735x+18x=19+39210x \frac{1}{7}-\frac{3}{5}x+\frac{1}{8}x=\frac{1}{9}+\frac{3}{9}-\frac{2}{10}x

Video Solution

Step-by-Step Solution

To solve the equation 1735x+18x=19+39210x \frac{1}{7} - \frac{3}{5}x + \frac{1}{8}x = \frac{1}{9} + \frac{3}{9} - \frac{2}{10}x , follow these steps:

  • Step 1: Simplify constant terms
    Combine the constant terms on the right side: 19+39=49 \frac{1}{9} + \frac{3}{9} = \frac{4}{9} .
  • Step 2: Handle fractions involving x x and simplify
    On the left: Combine 35x-\frac{3}{5}x and 18x\frac{1}{8}x to get a single fraction with common denominator 40: 35×88x+18×55x=2440x+540x=1940x-\frac{3}{5} \times \frac{8}{8}x + \frac{1}{8} \times \frac{5}{5}x = -\frac{24}{40}x + \frac{5}{40}x = -\frac{19}{40}x.
  • Step 3: Isolate terms involving x x
    Rewrite the equation: 171940x=49210x \frac{1}{7} - \frac{19}{40}x = \frac{4}{9} - \frac{2}{10}x .
    Bring all x x -terms to the left, and constant terms to the right: 1749=210x+1940x \frac{1}{7} - \frac{4}{9} = -\frac{2}{10}x + \frac{19}{40}x .
  • Step 4: Simplify each side
    For the constants, find a common denominator 63: 17×9949×77=9632863=1963\frac{1}{7} \times \frac{9}{9} - \frac{4}{9} \times \frac{7}{7} = \frac{9}{63} - \frac{28}{63} = \frac{-19}{63}.
    For x x -terms, common denominator 40: 840x+1940x=1140x-\frac{8}{40}x + \frac{19}{40}x = \frac{11}{40}x.
  • Step 5: Solve for x x
    Combine: 1963=1140x \frac{-19}{63} = \frac{11}{40}x .
    Solve: x=1963×4011=760693 x = \frac{-19}{63} \times \frac{40}{11} = \frac{-760}{693} .

Therefore, the solution to the problem is x=760693 x = -\frac{760}{693} .

Answer

760693 -\frac{760}{693}

Exercise #15

Solve for X:

18x34+19=28+34x12x \frac{1}{8}x-\frac{3}{4}+\frac{1}{9}=-\frac{2}{8}+\frac{3}{4}x-\frac{1}{2}x

Video Solution

Step-by-Step Solution

To solve the given linear equation 18x34+19=28+34x12x \frac{1}{8}x - \frac{3}{4} + \frac{1}{9} = -\frac{2}{8} + \frac{3}{4}x - \frac{1}{2}x , we need to follow these steps:

First, simplify both sides of the equation:

On the left-hand side, which is 18x34+19 \frac{1}{8}x - \frac{3}{4} + \frac{1}{9} :

  • Simplifying, it remains 18x34+19 \frac{1}{8}x - \frac{3}{4} + \frac{1}{9} .
  • Convert 34+19-\frac{3}{4} + \frac{1}{9} to a common denominator. The least common multiple of 44 and 99 is 3636.
  • 34=2736-\frac{3}{4} = -\frac{27}{36} and 19=436\frac{1}{9} = \frac{4}{36}, so 2736+436=2336-\frac{27}{36} + \frac{4}{36} = -\frac{23}{36}.
  • The left-hand side is now 18x2336 \frac{1}{8}x - \frac{23}{36} .

Now, simplify the right-hand side, which is 28+34x12x -\frac{2}{8} + \frac{3}{4}x - \frac{1}{2}x :

  • 28=14-\frac{2}{8} = -\frac{1}{4}.
  • Simplify 34x12x\frac{3}{4}x - \frac{1}{2}x. The common denominator for 34\frac{3}{4} and 12\frac{1}{2} is 44.
  • So 34x12x=34x24x=14x\frac{3}{4}x - \frac{1}{2}x = \frac{3}{4}x - \frac{2}{4}x = \frac{1}{4}x.
  • The right-hand side is now 14+14x-\frac{1}{4} + \frac{1}{4}x.

Combine like terms across the equation:

  • We aim to move all terms involving x x to one side and constants to the other.
  • Subtract 14x\frac{1}{4}x from both sides: 18x14x2336=14 \frac{1}{8}x - \frac{1}{4}x - \frac{23}{36} = -\frac{1}{4} .
  • Bring 2336-\frac{23}{36} to the right side: 18x14x=14+2336 \frac{1}{8}x - \frac{1}{4}x = -\frac{1}{4} + \frac{23}{36} .
    • Simplify and solve for x x :

      • 18x14x=18x28x=18x\frac{1}{8}x - \frac{1}{4}x = \frac{1}{8}x - \frac{2}{8}x = -\frac{1}{8}x.
      • Add 2336\frac{23}{36} to 14-\frac{1}{4}, by finding a common denominator of 3636.
      • 14=936-\frac{1}{4} = -\frac{9}{36}, so 936+2336=1436=718-\frac{9}{36} + \frac{23}{36} = \frac{14}{36} = \frac{7}{18}.
      • Now we have: 18x=718-\frac{1}{8}x = \frac{7}{18}.
      • Multiply both sides by 8-8 to solve for x x : (8)(18x)=(8)(718)(-8) \cdot \left(-\frac{1}{8}x\right) = (-8) \cdot \left(\frac{7}{18}\right).
      • This simplifies to x=5618=289 x = -\frac{56}{18} = -\frac{28}{9}.
      • 289-\frac{28}{9} can be rewritten as a mixed number: 289=319-\frac{28}{9} = -3\frac{1}{9}.

      Therefore, the solution is:

      x=319 x = -3\frac{1}{9} .

Answer

319 -3\frac{1}{9}

Exercise #16

Solve for X:


7935x+14=2837x+610x \frac{7}{9}-\frac{3}{5}x+\frac{1}{4}=\frac{2}{8}-\frac{3}{7}x+\frac{6}{10}x

Video Solution

Step-by-Step Solution

Let's solve for x x in the given equation through a structured approach:

We start with the equation:
7935x+14=2837x+610x \frac{7}{9} - \frac{3}{5}x + \frac{1}{4} = \frac{2}{8} - \frac{3}{7}x + \frac{6}{10}x Simplify where possible and combine like terms:

Step 1: Simplify constants and rearrange:
Convert to simplest forms:
- 28=14\frac{2}{8} = \frac{1}{4} and 610=35\frac{6}{10} = \frac{3}{5}.
Substitute these into the equation to get:
79+1435x=14+35x37x \frac{7}{9} + \frac{1}{4} - \frac{3}{5}x = \frac{1}{4} + \frac{3}{5}x - \frac{3}{7}x Cancelling out 14\frac{1}{4} on both sides simplifies it to:
7935x=35x37x \frac{7}{9} - \frac{3}{5}x = \frac{3}{5}x - \frac{3}{7}x

Step 2: Combine like terms containing x x :
The right side becomes:
35x37x=(2135x1535x)=635x \frac{3}{5}x - \frac{3}{7}x = \left(\frac{21}{35}x - \frac{15}{35}x\right) = \frac{6}{35}x Thus, we now have the equation:
79=635x \frac{7}{9} = \frac{6}{35}x

Step 3: Solve for x x :
Cross-multiply to solve for x x :
735=96x245=54xx=24554 7 \cdot 35 = 9 \cdot 6x \\ 245 = 54x \\ x = \frac{245}{54} Simplifying the fraction gives:
x=3554=12243 x = \frac{35}{54} = 1\frac{2}{243}

Therefore, the solution to the equation is x=12243 x = 1\frac{2}{243} .

Answer

12243 1\frac{2}{243}

Exercise #17

Solve for X:

311812x+13x=12+242224x \frac{3}{11}-\frac{8}{12}x+\frac{1}{3}x=\frac{1}{2}+\frac{2}{4}-\frac{22}{24}x

Video Solution

Step-by-Step Solution

To solve this problem, let's break down the equation step-by-step:

Start with the original equation:

311812x+13x=12+242224x \frac{3}{11} - \frac{8}{12}x + \frac{1}{3}x = \frac{1}{2} + \frac{2}{4} - \frac{22}{24}x

Step 1: Simplify the fractions where possible.

  • 812=23 \frac{8}{12} = \frac{2}{3} : Simplifying 812x\frac{8}{12}x gives us:23x -\frac{2}{3}x
  • 24=12 \frac{2}{4} = \frac{1}{2}
  • 2224 \frac{22}{24} simplifies to 1112 \frac{11}{12} : So, 2224x-\frac{22}{24}x becomes 1112x-\frac{11}{12}x

The equation now looks like this:

31123x+13x=12+121112x \frac{3}{11} - \frac{2}{3}x + \frac{1}{3}x = \frac{1}{2} + \frac{1}{2} - \frac{11}{12}x

Step 2: Combine like terms.

  • 23x+13x=13x-\frac{2}{3}x + \frac{1}{3}x = -\frac{1}{3}x
  • 12+12=1\frac{1}{2} + \frac{1}{2} = 1

So, the equation simplifies to:

31113x=11112x \frac{3}{11} - \frac{1}{3}x = 1 - \frac{11}{12}x

Step 3: Move all terms involving x x to one side:

Add 13x\frac{1}{3}x to both sides:

311=11112x+13x \frac{3}{11} = 1 - \frac{11}{12}x + \frac{1}{3}x

Combine the terms with x x :

  • 1112x+13x=1112x+412x=712x-\frac{11}{12}x + \frac{1}{3}x = -\frac{11}{12}x + \frac{4}{12}x = -\frac{7}{12}x

Thus, the equation is:

311=1712x \frac{3}{11} = 1 - \frac{7}{12}x

Step 4: Isolate x x :

Subtract 1 from both sides:

3111=712x \frac{3}{11} - 1 = -\frac{7}{12}x

Convert 1-1 to a fraction with a common denominator to the left side:3111111=31111=811 \frac{3}{11} - \frac{11}{11} = \frac{3 - 11}{11} = -\frac{8}{11}

Now the equation is:

811=712x -\frac{8}{11} = -\frac{7}{12}x

Multiply both sides by the reciprocal of 712-\frac{7}{12} to solve for x x :

x=811127=812117=9677 x = -\frac{8}{11} \cdot -\frac{12}{7} = \frac{8 \cdot 12}{11 \cdot 7} = \frac{96}{77}

Thus, the solution to the equation is 9677\boxed{\frac{96}{77}}.

Answer

9677 \frac{96}{77}

Exercise #18

Solve for X:


18416+1516x=34x28x+38 \frac{1}{8}-\frac{4}{16}+\frac{15}{16}x=\frac{3}{4}x-\frac{2}{8}x+\frac{3}{8}

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Simplify both sides of the equation by combining like terms.
  • Step 2: Solve for x x .

Now, let's work through each step:

Step 1: Simplify the left-hand side:
18416+1516x=1814+1516x \frac{1}{8} - \frac{4}{16} + \frac{15}{16}x = \frac{1}{8} - \frac{1}{4} + \frac{15}{16}x .
Convert 14\frac{1}{4} to 28\frac{2}{8}, the same denominator with 18\frac{1}{8}:
1828+1516x=18+1516x \frac{1}{8} - \frac{2}{8} + \frac{15}{16}x = -\frac{1}{8} + \frac{15}{16}x .

Simplify the right-hand side:
34x28x+38=34x14x+38 \frac{3}{4}x - \frac{2}{8}x + \frac{3}{8} = \frac{3}{4}x - \frac{1}{4}x + \frac{3}{8} .
Convert both terms with x x to a common denominator (i.e., 4/4 of x x terms):
24x+38=12x+38 \frac{2}{4}x + \frac{3}{8} = \frac{1}{2}x + \frac{3}{8} .

Step 2: Equate the simplified expressions:
18+1516x=12x+38 -\frac{1}{8} + \frac{15}{16}x = \frac{1}{2}x + \frac{3}{8} .

Subtract 12x\frac{1}{2}x from both sides:
18+1516x12x=38-\frac{1}{8} + \frac{15}{16}x - \frac{1}{2}x = \frac{3}{8} .
Convert 12x\frac{1}{2}x to 816x\frac{8}{16}x and 1516x816x=716x\frac{15}{16}x - \frac{8}{16}x = \frac{7}{16}x .
18+716x=38-\frac{1}{8} + \frac{7}{16}x = \frac{3}{8} .

Add 18\frac{1}{8} to both sides:
716x=38+18=48=12\frac{7}{16}x = \frac{3}{8} + \frac{1}{8} = \frac{4}{8} = \frac{1}{2} .

Solve for x x by multiplying both sides by the reciprocal of 716\frac{7}{16}:
x=1/2×167=1614=87 x = \frac{1/2 \times 16}{7} = \frac{16}{14} = \frac{8}{7} .
Checking the choice that matches, the solution is 1614 \frac{16}{14} .

Therefore, the solution to the problem is x=1614 x = \frac{16}{14} .

Answer

1614 \frac{16}{14}

Exercise #19

Solve for X:

364x+357819x=168+455x3819 \frac{36}{4}x+\frac{35}{7}-\frac{81}{9}x=\frac{16}{8}+\frac{45}{5}x-\frac{38}{19}

Video Solution

Step-by-Step Solution

To solve the problem, we'll follow these steps:

  • Step 1: Simplify each fraction in the equation.
  • Step 2: Combine like terms involving x x on one side of the equation and constants on the other.
  • Step 3: Solve the simplified equation for x x .

Let's work through each step together:

Step 1: Simplify each fraction:

  • 364=9\frac{36}{4} = 9,
  • 357=5\frac{35}{7} = 5,
  • 819=9\frac{81}{9} = 9,
  • 168=2\frac{16}{8} = 2,
  • 455=9\frac{45}{5} = 9,
  • 3819=2\frac{38}{19} = 2.

With these simplifications, our equation becomes:

9x+59x=2+9x2 9x + 5 - 9x = 2 + 9x - 2 .

Step 2: Combine like terms.

  • The terms 9x 9x and 9x-9x cancel out on the left, so we have:
  • 5=2+9x2 5 = 2 + 9x - 2 .
  • Simplify the right side: 5=9x 5 = 9x .

Step 3: Solve for x x :

5=9x 5 = 9x

Divide both sides by 9 9 :

x=59 x = \frac{5}{9} .

Therefore, the solution to the equation is x=59 x = \frac{5}{9} .

Answer

59 \frac{5}{9}

Exercise #20

Solve for X:

10025+14412x3311=568x357x+182 \frac{100}{25}+\frac{144}{12}x-\frac{33}{11}=\frac{56}{8}x-\frac{35}{7}x+\frac{18}{2}

Video Solution

Step-by-Step Solution

To solve this problem, we'll proceed through the following steps:

  • Step 1: Simplify each fraction in the equation.
  • Step 2: Combine like terms on both sides.
  • Step 3: Solve for x x .

Let's work through these steps:

Step 1: Simplify each fraction:
10025=4\frac{100}{25} = 4, 14412=12\frac{144}{12} = 12, 3311=3\frac{33}{11} = 3, 568=7\frac{56}{8} = 7, 357=5\frac{35}{7} = 5, 182=9\frac{18}{2} = 9.

Now our equation becomes:

4+12x3=7x5x+94 + 12x - 3 = 7x - 5x + 9

Step 2: Simplify and combine like terms:
On the left side: 43+12x=1+12x4 - 3 + 12x = 1 + 12x
On the right side: 7x5x+9=2x+97x - 5x + 9 = 2x + 9

The equation now is:

1+12x=2x+91 + 12x = 2x + 9

Step 3: Solve for x x :
Subtract 2x2x from both sides:
1+10x=91 + 10x = 9
Subtract 11 from both sides:
10x=810x = 8
Divide both sides by 1010:
x=810=45x = \frac{8}{10} = \frac{4}{5}

Therefore, the solution to the problem is x=45 x = \frac{4}{5} .

Answer

45 \frac{4}{5}