Question

solve for r.

r + 6 = -9 - 9 - 2r

r =

Explanation:

Step1: Simplify right-hand side

Combine the constant terms: $-9 - 9 = -18$, so the equation becomes:
$r + 6 = -18 - 2r$

Step2: Add $2r$ to both sides

This collects $r$ terms on the left:
$r + 2r + 6 = -18$
$3r + 6 = -18$

Step3: Subtract 6 from both sides

Isolate the term with $r$:
$3r = -18 - 6$
$3r = -24$

Step4: Divide by 3 to solve for $r$

$\frac{3r}{3} = \frac{-24}{3}$

Answer:

$r = -8$