Solve for X: 5(x-4)-6(7-x)=5x Linear Equation Solution

Question

Solve for X:

5(x4)6(7x)=5x 5(x-4)-6(7-x)=5x

Video Solution

Solution Steps

00:00 Find X
00:04 Make sure to open parentheses properly, multiply by each term
00:22 Solve each multiplication separately
00:33 Negative times negative always equals positive
00:42 Combine like terms
00:48 Arrange the equation so that X is isolated on one side
01:05 Combine like terms
01:12 Isolate X
01:26 Simplify as much as possible
01:30 This is the solution to the problem

Step-by-Step Solution

To solve the equation 5(x4)6(7x)=5x 5(x-4) - 6(7-x) = 5x , we will simplify both sides and solve for x x step-by-step:

Step 1: Distribute Constants inside Parentheses
Apply the distributive property to simplify each group:
- 5(x4) 5(x-4) becomes 5x20 5x - 20 .
- 6(7x)-6(7-x) becomes 42+6x-42 + 6x.

Resulting Equation:
5x2042+6x=5x 5x - 20 - 42 + 6x = 5x .

Step 2: Combine Like Terms
Combine 5x 5x and 6x 6x , and 20-20 and 42-42:
- 5x+6x=11x 5x + 6x = 11x .
- 2042=62-20 - 42 = -62.
The equation is now: 11x62=5x 11x - 62 = 5x .

Step 3: Isolate the Variable x x
Subtract 5x 5x from both sides to get the x x -terms on one side:
11x5x=62 11x - 5x = 62 .
This simplifies to 6x62=0 6x - 62 = 0 .

Step 4: Solve for x x
Add 62 to both sides to isolate the term with x x :
6x=62 6x = 62 .
Now, divide by 6 to solve for x x :
x=626=31310.33 x = \frac{62}{6} = \frac{31}{3} \approx 10.33 .

Therefore, x10.33 x \approx 10.33 .

Answer

10.33 10.33