Answer:
s = -4
Step-by-step explanation:
Your goal is to manipulate the equation so you can isolate s
9s + 20 = -16
Subtract 20 from both sides to get:
9s = -36
Divide both sides by 9 so s is alone
you end up with s = -4
9s+20=−16
Subtract 20 from each side
9s +20 -20 = -16 -20
Divide by 9
9s/9 = -36/9
