9m=-21+2m

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Solution for 9m=-21+2m equation: 


Simplifying
9m = -21 + 2m

Solving
9m = -21 + 2m

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
9m + -2m = -21 + 2m + -2m

Combine like terms: 9m + -2m = 7m
7m = -21 + 2m + -2m

Combine like terms: 2m + -2m = 0
7m = -21 + 0
7m = -21

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

Simplifying
m = -3

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