# How do you solve 7x + 3= 4x - 18?

May 9, 2018

$x = \left(- 7\right)$

#### Explanation:

$7 x + 3 = 4 x - 18$

Subtracting $4 x$ from both sides,
$3 x + 3 = - 18$

Subtracting $3$ from both sides,
$3 x = \left(- 18 - 3\right)$
$3 x = - 21$

Dividing both sides by $3$,
$x = - 7$