Question

1. -3(4r - 8)= -36

Explanation:

Step1: Distribute -3

$-3\times4r+(-3)\times(-8)=-36$
$-12r + 24=-36$

Step2: Subtract 24 from both sides

$-12r+24 - 24=-36 - 24$
$-12r=-60$

Step3: Divide both sides by -12

$\frac{-12r}{-12}=\frac{-60}{-12}$
$r = 5$

Answer:

$r = 5$