12-3m=-15

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Solution for 12-3m=-15 equation: 


Simplifying
12 + -3m = -15

Solving
12 + -3m = -15

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 + -3m = -15 + -12

Combine like terms: 12 + -12 = 0
0 + -3m = -15 + -12
-3m = -15 + -12

Combine like terms: -15 + -12 = -27
-3m = -27

Divide each side by '-3'.
m = 9

Simplifying
m = 9

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