3m+12-m=78

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Solution for 3m+12-m=78 equation:


Simplifying
3m + 12 + -1m = 78

Reorder the terms:
12 + 3m + -1m = 78

Combine like terms: 3m + -1m = 2m
12 + 2m = 78

Solving
12 + 2m = 78

Solving for variable 'm'.

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

Add '-12' to each side of the equation.
12 + -12 + 2m = 78 + -12

Combine like terms: 12 + -12 = 0
0 + 2m = 78 + -12
2m = 78 + -12

Combine like terms: 78 + -12 = 66
2m = 66

Divide each side by '2'.
m = 33

Simplifying
m = 33

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