3m-5+7m+12=87

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Solution for 3m-5+7m+12=87 equation:


Simplifying
3m + -5 + 7m + 12 = 87

Reorder the terms:
-5 + 12 + 3m + 7m = 87

Combine like terms: -5 + 12 = 7
7 + 3m + 7m = 87

Combine like terms: 3m + 7m = 10m
7 + 10m = 87

Solving
7 + 10m = 87

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + 10m = 87 + -7

Combine like terms: 7 + -7 = 0
0 + 10m = 87 + -7
10m = 87 + -7

Combine like terms: 87 + -7 = 80
10m = 80

Divide each side by '10'.
m = 8

Simplifying
m = 8

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