# How do you solve -9x-12=177?

Jul 5, 2015

Add 12 to both sides
then divide by $\left(- 9\right)$
to get $x = - 21$

#### Explanation:

Given
$\textcolor{w h i t e}{\text{XXXX}}$$- 9 x - 12 = 177$
Add $12$ to both sides
$\textcolor{w h i t e}{\text{XXXX}}$$- 9 x = 189$
Divide both sides by $\left(- 9\right)$
$\textcolor{w h i t e}{\text{XXXX}}$$x = - 21$