Question

$5 = 5x - 20$

Explanation:

Step1: Add 20 to both sides

$5 + 20 = 5x - 20 + 20$
$25 = 5x$

Step2: Divide by 5 on both sides

$\frac{25}{5} = \frac{5x}{5}$
$5 = x$

Answer:

$x=5$