# How do you solve and graph 3x + 15 ≤ 21 ?

Dec 3, 2016

$x \le - 12$

#### Explanation:

Given:$\text{ } 3 x + 15 \le 21$

Subtract 15 from both sides

$3 x + 15 - 15 \le 21 - 15$

$3 x + 0 \le 6$

Divide both sides by 3

$\frac{3}{3} x \le - \frac{6}{3}$

$x \le - 2$