Question

m 9: spiral review
solve the equation.
$-4(r + 2) = 4(2 - 2r)$
use the sketch tool or paper if it helps with your thinking.
submit

Explanation:

Step1: Expand both sides

$-4r - 8 = 8 - 8r$

Step2: Add $8r$ to both sides

$-4r + 8r - 8 = 8 - 8r + 8r$
$4r - 8 = 8$

Step3: Add 8 to both sides

$4r - 8 + 8 = 8 + 8$
$4r = 16$

Step4: Divide by 4

$\frac{4r}{4} = \frac{16}{4}$

Answer:

$r = 4$