Solve for m
m=7
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4m+8-7m=-13
Subtract 7m from both sides.
-3m+8=-13
Combine 4m and -7m to get -3m.
-3m=-13-8
Subtract 8 from both sides.
-3m=-21
Subtract 8 from -13 to get -21.
m=\frac{-21}{-3}
Divide both sides by -3.
m=7
Divide -21 by -3 to get 7.
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