-18-m=15+2m

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Solution for -18-m=15+2m equation:


Simplifying
-18 + -1m = 15 + 2m

Solving
-18 + -1m = 15 + 2m

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
-18 + -1m + -2m = 15 + 2m + -2m

Combine like terms: -1m + -2m = -3m
-18 + -3m = 15 + 2m + -2m

Combine like terms: 2m + -2m = 0
-18 + -3m = 15 + 0
-18 + -3m = 15

Add '18' to each side of the equation.
-18 + 18 + -3m = 15 + 18

Combine like terms: -18 + 18 = 0
0 + -3m = 15 + 18
-3m = 15 + 18

Combine like terms: 15 + 18 = 33
-3m = 33

Divide each side by '-3'.
m = -11

Simplifying
m = -11

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