Solve for z
z=-8
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-8z+8=72
Swap sides so that all variable terms are on the left hand side.
-8z=72-8
Subtract 8 from both sides.
-8z=64
Subtract 8 from 72 to get 64.
z=\frac{64}{-8}
Divide both sides by -8.
z=-8
Divide 64 by -8 to get -8.
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