12+3m=m+7

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Solution for 12+3m=m+7 equation:


Simplifying
12 + 3m = m + 7

Reorder the terms:
12 + 3m = 7 + m

Solving
12 + 3m = 7 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
12 + 3m + -1m = 7 + m + -1m

Combine like terms: 3m + -1m = 2m
12 + 2m = 7 + m + -1m

Combine like terms: m + -1m = 0
12 + 2m = 7 + 0
12 + 2m = 7

Add '-12' to each side of the equation.
12 + -12 + 2m = 7 + -12

Combine like terms: 12 + -12 = 0
0 + 2m = 7 + -12
2m = 7 + -12

Combine like terms: 7 + -12 = -5
2m = -5

Divide each side by '2'.
m = -2.5

Simplifying
m = -2.5

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