Solve for m
m=-\frac{1}{2}=-0.5
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m-\frac{3}{8}=-\frac{7}{8}
Swap sides so that all variable terms are on the left hand side.
m=-\frac{7}{8}+\frac{3}{8}
Add \frac{3}{8} to both sides.
m=\frac{-7+3}{8}
Since -\frac{7}{8} and \frac{3}{8} have the same denominator, add them by adding their numerators.
m=\frac{-4}{8}
Add -7 and 3 to get -4.
m=-\frac{1}{2}
Reduce the fraction \frac{-4}{8} to lowest terms by extracting and canceling out 4.
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