Question

solve for x.
$3x + 9 - 8x = -31$
simplify your answer as much as possible.
$x = \square$

Explanation:

Step1: Combine like x terms

$3x - 8x + 9 = -31$
$-5x + 9 = -31$

Step2: Subtract 9 from both sides

$-5x + 9 - 9 = -31 - 9$
$-5x = -40$

Step3: Divide by -5 on both sides

$\frac{-5x}{-5} = \frac{-40}{-5}$
$x = 8$

Answer:

$x = 8$