3m+4m=21

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Solution for 3m+4m=21 equation: 


Simplifying
3m + 4m = 21

Combine like terms: 3m + 4m = 7m
7m = 21

Solving
7m = 21

Solving for variable 'm'.

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

Divide each side by '7'.
m = 3

Simplifying
m = 3

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