Answer: x = -8
Explanation:
We have -81 = 3(3x-3)
Starting with the parenthesis, we have 3(3x-3). Multiply 3 by (3x-3) and we get 9x-9.
Putting it together, we have -81=9x-9. Now we need to isolate the numbers to one side and x on the other to find what x is.
-81 = 9x -9
+9 +9
-72 = 9x
-72 = 9x
9 9
-8 = x