# How do you solve -18=-3r+24?

Apr 29, 2018

$r = 14$

#### Explanation:

Plus $3 r$ to both sides:

3r - 18 = cancel(-3r) + 24 + cancel(3r

$\implies 3 r - 18 = 24$

Plus 18 to both sides:

$\implies 3 r = 24 + 18 = 42$

Divide by 3 on both sides

$\implies r = \frac{42}{3} = 14$