# If 3 (x + 10) = 15 , what is the value of x ?

Apr 4, 2018

$x = - 5$

#### Explanation:

$3 \left(x + 10\right) = 15$
$3 \cdot x + 3 \cdot 10 = 15$
$3 x + 30 - 30 = 15 - 30$
$3 x = - 15$
$x = - 5$
\0/ here's our answer !