-m-3=3m+9

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Solution for -m-3=3m+9 equation:


Simplifying
-1m + -3 = 3m + 9

Reorder the terms:
-3 + -1m = 3m + 9

Reorder the terms:
-3 + -1m = 9 + 3m

Solving
-3 + -1m = 9 + 3m

Solving for variable 'm'.

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

Add '-3m' to each side of the equation.
-3 + -1m + -3m = 9 + 3m + -3m

Combine like terms: -1m + -3m = -4m
-3 + -4m = 9 + 3m + -3m

Combine like terms: 3m + -3m = 0
-3 + -4m = 9 + 0
-3 + -4m = 9

Add '3' to each side of the equation.
-3 + 3 + -4m = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -4m = 9 + 3
-4m = 9 + 3

Combine like terms: 9 + 3 = 12
-4m = 12

Divide each side by '-4'.
m = -3

Simplifying
m = -3

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