# How do you solve 3r - 3= 9?

Oct 21, 2016

$r = 4$

#### Explanation:

$3 r - 3 = 9$

Add $3$ on both sides

$3 r = 9 + 3$

$3 r = 12$

Divide both sides by $3$

$r = \frac{12}{3}$

$r = 4$