3m=(m-5)+12

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Solution for 3m=(m-5)+12 equation: 


Simplifying
3m = (m + -5) + 12

Reorder the terms:
3m = (-5 + m) + 12

Remove parenthesis around (-5 + m)
3m = -5 + m + 12

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

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

Solving
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.
3m + -1m = 7 + m + -1m

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

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

Divide each side by '2'.
m = 3.5

Simplifying
m = 3.5

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