13m+-9m=-20

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Solution for 13m+-9m=-20 equation: 


Simplifying
13m + -9m = -20

Combine like terms: 13m + -9m = 4m
4m = -20

Solving
4m = -20

Solving for variable 'm'.

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

Divide each side by '4'.
m = -5

Simplifying
m = -5

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