Fractional Equation Challenge: Solve for X in 1/3(1/3x + 1/6) = 1/18

Question

Solve for X:

13(13x+16)=118 \frac{1}{3}(\frac{1}{3}x+\frac{1}{6})=\frac{1}{18}

Video Solution

Solution Steps

00:00 Find X
00:03 Open parentheses properly, multiply by each factor
00:16 Arrange the equation so that X is isolated on one side
00:27 Combine like terms
00:31 Isolate X
00:37 And this is the solution to the problem

Step-by-Step Solution

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

  • Step 1: Distribute and expand the equation.
  • Step 2: Eliminate the fractions by multiplying through by the least common denominator.
  • Step 3: Solve for x x .

Now, let's work through each step:

Step 1: Distribute 13\frac{1}{3} across the terms in the parentheses:
13(13x+16)\frac{1}{3} \left(\frac{1}{3}x + \frac{1}{6}\right) becomes 1313x+1316\frac{1}{3} \cdot \frac{1}{3}x + \frac{1}{3} \cdot \frac{1}{6}, resulting in 19x+118\frac{1}{9}x + \frac{1}{18}.

Step 2: The equation is now 19x+118=118\frac{1}{9}x + \frac{1}{18} = \frac{1}{18}.
To eliminate the fractions, we identify the least common denominator, which is 18.

Multiply everything by 18 to clear the fractions:

1819x+18118=1811818 \cdot \frac{1}{9}x + 18 \cdot \frac{1}{18} = 18 \cdot \frac{1}{18}

Which simplifies to:

2x+1=12x + 1 = 1

Step 3: Solve the resulting linear equation:

Subtract 1 from both sides to isolate the term with x x :
2x=02x = 0

Divide both sides by 2 to solve for x x :
x=0x = 0

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

Answer

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