Answer:
Question 8: x = -9
Question 9: x = 72
Step-by-step explanation:
Question 8:
9x = -81
Divide both sides by 9.
x = [tex]\frac{-81}{9}[/tex]
Divide −81 by 9 to get −9.
x = -9
Question 9:
-12 = -[tex]\frac{x}{6}[/tex]
Multiply both sides of the equation by 6.
-72 = -x
Swap sides so that all variable terms are on the left-hand side.
-x = -72
Multiply both sides by −1.
x = 72
Hope it helps and have a great day! =D
~sunshine~
