3m-6m=21

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Solution for 3m-6m=21 equation: 


Simplifying
3m + -6m = 21

Combine like terms: 3m + -6m = -3m
-3m = 21

Solving
-3m = 21

Solving for variable 'm'.

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

Divide each side by '-3'.
m = -7

Simplifying
m = -7

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