3m+5-9m-12=-31

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Solution for 3m+5-9m-12=-31 equation:


Simplifying
3m + 5 + -9m + -12 = -31

Reorder the terms:
5 + -12 + 3m + -9m = -31

Combine like terms: 5 + -12 = -7
-7 + 3m + -9m = -31

Combine like terms: 3m + -9m = -6m
-7 + -6m = -31

Solving
-7 + -6m = -31

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 + -6m = -31 + 7

Combine like terms: -7 + 7 = 0
0 + -6m = -31 + 7
-6m = -31 + 7

Combine like terms: -31 + 7 = -24
-6m = -24

Divide each side by '-6'.
m = 4

Simplifying
m = 4

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