12m=21+5m

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Solution for 12m=21+5m equation: 


Simplifying
12m = 21 + 5m

Solving
12m = 21 + 5m

Solving for variable 'm'.

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

Add '-5m' to each side of the equation.
12m + -5m = 21 + 5m + -5m

Combine like terms: 12m + -5m = 7m
7m = 21 + 5m + -5m

Combine like terms: 5m + -5m = 0
7m = 21 + 0
7m = 21

Divide each side by '7'.
m = 3

Simplifying
m = 3

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