Solve for r 8=4(r+4)

$8 = 4 (r + 4)$

Step 1

Rewrite the equation as $4 (r + 4) = 8$ .

$4 (r + 4) = 8$

Step 2

Divide each term in $4 (r + 4) = 8$ by $4$ and simplify.

Divide each term in $4 (r + 4) = 8$ by $4$ .

$\frac{4 (r + 4)}{4} = \frac{8}{4}$

Simplify the left side.

Cancel the common factor of $4$ .

Cancel the common factor.

$\frac{4 (r + 4)}{4} = \frac{8}{4}$

Divide $r + 4$ by $1$ .

$r + 4 = \frac{8}{4}$

Simplify the right side.

Divide $8$ by $4$ .

$r + 4 = 2$

Step 3

Move all terms not containing $r$ to the right side of the equation.

Subtract $4$ from both sides of the equation.

$r = 2 - 4$

Subtract $4$ from $2$ .

$r = - 2$