# How do you solve x + 13 = -8?

Jul 14, 2018

$x = - 21$

#### Explanation:

To solve for the variable $x$, we have to isolate it (make it by itself). To do so, subtract $\textcolor{b l u e}{13}$ from both sides of the equation:
$x + 13 \quad \textcolor{b l u e}{- \quad 13} = - 8 \quad \textcolor{b l u e}{- \quad 13}$

Therefore,
$x = - 21$

Hope this helps!