7m+15=12m-20

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Solution for 7m+15=12m-20 equation:


Simplifying
7m + 15 = 12m + -20

Reorder the terms:
15 + 7m = 12m + -20

Reorder the terms:
15 + 7m = -20 + 12m

Solving
15 + 7m = -20 + 12m

Solving for variable 'm'.

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

Add '-12m' to each side of the equation.
15 + 7m + -12m = -20 + 12m + -12m

Combine like terms: 7m + -12m = -5m
15 + -5m = -20 + 12m + -12m

Combine like terms: 12m + -12m = 0
15 + -5m = -20 + 0
15 + -5m = -20

Add '-15' to each side of the equation.
15 + -15 + -5m = -20 + -15

Combine like terms: 15 + -15 = 0
0 + -5m = -20 + -15
-5m = -20 + -15

Combine like terms: -20 + -15 = -35
-5m = -35

Divide each side by '-5'.
m = 7

Simplifying
m = 7

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