Answer
The steps are shown below.
Work Step by Step
Write the equation.
$2(x+3)+x=-9$
Use distributive property.
$2(x)+2(3)+x=-9$
Simplify.
$2x+6+x=-9$
Add like terms.
$3x+6=-9$
Subtract $6$ from each side.
$3x=-15$
Divide each side by $3$.
$x=-5$
