Question

1. if $2(r + 4) + 8 = 4(r + 3)$, what is the value of $r$?

$r = -4$
$r = -2$
$r = 2$
$r = 4$

Explanation:

Step1: Expand both sides of equation

$2r + 8 + 8 = 4r + 12$

Step2: Simplify both sides

$2r + 16 = 4r + 12$

Step3: Isolate r terms

$16 - 12 = 4r - 2r$

Step4: Calculate and solve for r

$4 = 2r \implies r = \frac{4}{2} = 2$

Answer:

$r = 2$