How do you solve −4x − 16 = 20?

May 10, 2016

$x = - 9$

Explanation:

$- 4 x - 16 = 20$

$- 4 x = 20 + 16$

$- 4 x = 36$

$x = \frac{36}{- 4}$

$x = - 9$