Solve for z
z = -\frac{7}{2} = -3\frac{1}{2} = -3.5
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\frac{-28}{8}=z
Divide both sides by 8.
-\frac{7}{2}=z
Reduce the fraction \frac{-28}{8} to lowest terms by extracting and canceling out 4.
z=-\frac{7}{2}
Swap sides so that all variable terms are on the left hand side.
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