Solve for r r+6=-9-9-2r

$r + 6 = - 9 - 9 - 2 r$

Subtract $9$ from $- 9$ .

$r + 6 = - 18 - 2 r$

Move all terms containing $r$ to the left side of the equation.

Add $2 r$ to both sides of the equation.

$r + 6 + 2 r = - 18$

Add $r$ and $2 r$ .

$3 r + 6 = - 18$

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

Subtract $6$ from both sides of the equation.

$3 r = - 18 - 6$

Subtract $6$ from $- 18$ .

$3 r = - 24$

Divide each term in $3 r = - 24$ by $3$ and simplify.

Divide each term in $3 r = - 24$ by $3$ .

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

Simplify the left side.

Cancel the common factor of $3$ .

Cancel the common factor.

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

Divide $r$ by $1$ .

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

Simplify the right side.

Divide $- 24$ by $3$ .

$r = - 8$