# How do you solve 20+25x=345?

Sep 22, 2017

$x = 13$

#### Explanation:

First subtract 20 from both sides:

$20 \left(- 20\right) + 25 x = \left(- 20\right)$
$25 x = 325$

This gets x as the only term on the left hand side.
Divide both sides by the co-effcient of x (25), so that you find the answer for 1 x.

$\frac{25 x}{25} = \frac{325}{25}$
$x = 13$