12m-4=15m-13

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Solution for 12m-4=15m-13 equation:


Simplifying
12m + -4 = 15m + -13

Reorder the terms:
-4 + 12m = 15m + -13

Reorder the terms:
-4 + 12m = -13 + 15m

Solving
-4 + 12m = -13 + 15m

Solving for variable 'm'.

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

Add '-15m' to each side of the equation.
-4 + 12m + -15m = -13 + 15m + -15m

Combine like terms: 12m + -15m = -3m
-4 + -3m = -13 + 15m + -15m

Combine like terms: 15m + -15m = 0
-4 + -3m = -13 + 0
-4 + -3m = -13

Add '4' to each side of the equation.
-4 + 4 + -3m = -13 + 4

Combine like terms: -4 + 4 = 0
0 + -3m = -13 + 4
-3m = -13 + 4

Combine like terms: -13 + 4 = -9
-3m = -9

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

Simplifying
m = 3

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