Solve the Algebraic Fraction Equation: Finding X in -1/6(x + 1/3) = 1/2(1/3x - 1/9)

Question

Solve X:

16(x+13)=12(13x19) -\frac{1}{6}(x+\frac{1}{3})=\frac{1}{2}(\frac{1}{3}x-\frac{1}{9})

Video Solution

Solution Steps

00:00 Solution
00:03 Open parentheses properly, multiply by each factor
00:20 Arrange the equation so that only the unknown X is on one side
00:39 Collect like terms
00:42 Isolate X
00:49 And this is the solution to the question

Step-by-Step Solution

To solve the given equation 16(x+13)=12(13x19) -\frac{1}{6}(x + \frac{1}{3}) = \frac{1}{2}(\frac{1}{3}x - \frac{1}{9}) , we will follow these steps:

Step 1: Eliminate the fractions.

  • Identify the LCM of the denominators: 6 (from 16-\frac{1}{6}) and 9 (from 19-\frac{1}{9}). The LCM is 18.
  • Multiply each term of the equation by 18 to clear the fractions.

Applying this, the equation becomes:

18×16(x+13)=18×12(13x19) 18 \times -\frac{1}{6}(x + \frac{1}{3}) = 18 \times \frac{1}{2}(\frac{1}{3}x - \frac{1}{9})

Simplify each term:

  • For the left side: 18×16=3 18 \times -\frac{1}{6} = -3 . Thus, 3(x+13)-3(x + \frac{1}{3}).
  • For the right side: 18×12=9 18 \times \frac{1}{2} = 9 . Thus, 9(13x19)9(\frac{1}{3}x - \frac{1}{9}).

Now the equation is:

3(x+13)=9(13x19) -3(x + \frac{1}{3}) = 9(\frac{1}{3}x - \frac{1}{9})

Step 2: Distribute the terms.

The equation becomes:

  • Left side: 3x1-3x - 1 because 3×13=1-3 \times \frac{1}{3} = -1.
  • Right side: 3x13x - 1 because 9×13=39 \times \frac{1}{3} = 3 and 9×19=19 \times -\frac{1}{9} = -1.

Now we have:

3x1=3x1-3x - 1 = 3x - 1

Step 3: Solve for x x .

  • Add 3x 3x to both sides: 3x+3x1=3x+3x1-3x + 3x - 1 = 3x + 3x - 1
  • This simplifies to: 1=6x1-1 = 6x - 1
  • Add 1 to both sides: 1+1=6x1+1-1 + 1 = 6x - 1 + 1
  • This simplifies to: 0=6x0 = 6x
  • Finally, divide both sides by 6: x=06=0x = \frac{0}{6} = 0

Therefore, the solution to the equation is x=0 x = 0 .

Answer

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