-12m+4+21m-40=

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Solution for -12m+4+21m-40= equation:


Simplifying
-12m + 4 + 21m + -40 = 0

Reorder the terms:
4 + -40 + -12m + 21m = 0

Combine like terms: 4 + -40 = -36
-36 + -12m + 21m = 0

Combine like terms: -12m + 21m = 9m
-36 + 9m = 0

Solving
-36 + 9m = 0

Solving for variable 'm'.

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

Add '36' to each side of the equation.
-36 + 36 + 9m = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 9m = 0 + 36
9m = 0 + 36

Combine like terms: 0 + 36 = 36
9m = 36

Divide each side by '9'.
m = 4

Simplifying
m = 4

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