### Home > CC3MN > Chapter 5 > Lesson 5.1.2 > Problem5-18

5-18.

Solve each equation below.

1. $\frac { x } { 2 } + \frac { x } { 6 } = 7$

Multiply both sides of the equation by a common multiple of $2$ and $6$ to get rid of the fractions.

$6\left(\frac{{\it x}}{2}+\frac{{\it x}}{6}=7\right)$

$3x+x=42$

Combine like terms.

$4x=42$

Divide both sides by $4$.

$x=10.5$

1. $\frac { x } { 9 } + \frac { 2 x } { 2 } = \frac { 1 } { 3 }$

Follow the steps in part (a).

${\it x} = \frac{3}{10}$