# How do you solve -9 + w/4 =18?

##### 1 Answer
Mar 6, 2016

$w = 108$

#### Explanation:

Add $9$ to both sides of the equation.

$- 9 + \frac{w}{4} = 18$
$\underline{+ 9 \textcolor{w h i t e}{s s s s s s s} + 9}$
color(white)(+0+)color(blue)(w/4=27

Multiply both sides of the equation by $4$.

$\frac{w}{4} \left(4\right) = 27 \left(4\right)$

color(red)(w=108