4m-m=-21

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Solution for 4m-m=-21 equation: 


Simplifying
4m + -1m = -21

Combine like terms: 4m + -1m = 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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