3m-5m=18

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Solution for 3m-5m=18 equation: 


Simplifying
3m + -5m = 18

Combine like terms: 3m + -5m = -2m
-2m = 18

Solving
-2m = 18

Solving for variable 'm'.

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

Divide each side by '-2'.
m = -9

Simplifying
m = -9

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