SOLUTION: -4(-3 - 2z) = 9z

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Question 808250: -4(-3 - 2z) = 9z
Answer by lenny460(1073) About Me  (Show Source):
You can put this solution on YOUR website!
-4(-3 - 2z) = 9z
-4 * -3 = 12
-4 * -2Z = 8Z
Therefore:
12 + 8z = 9z
Subtract 8z from each side of the equation.
12 + 8z - 8z = 9z - 8z
12 = 1z

Answer:
z = 12



Lennox Obuong
Algebra Tutor
Indianapolis, Indiana