12m-9=4m-15

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Solution for 12m-9=4m-15 equation:


Simplifying
12m + -9 = 4m + -15

Reorder the terms:
-9 + 12m = 4m + -15

Reorder the terms:
-9 + 12m = -15 + 4m

Solving
-9 + 12m = -15 + 4m

Solving for variable 'm'.

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

Add '-4m' to each side of the equation.
-9 + 12m + -4m = -15 + 4m + -4m

Combine like terms: 12m + -4m = 8m
-9 + 8m = -15 + 4m + -4m

Combine like terms: 4m + -4m = 0
-9 + 8m = -15 + 0
-9 + 8m = -15

Add '9' to each side of the equation.
-9 + 9 + 8m = -15 + 9

Combine like terms: -9 + 9 = 0
0 + 8m = -15 + 9
8m = -15 + 9

Combine like terms: -15 + 9 = -6
8m = -6

Divide each side by '8'.
m = -0.75

Simplifying
m = -0.75

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