6m-13m=21

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Solution for 6m-13m=21 equation: 


Simplifying
6m + -13m = 21

Combine like terms: 6m + -13m = -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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