7-3m-6m=-20

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Solution for 7-3m-6m=-20 equation: 


Simplifying
7 + -3m + -6m = -20

Combine like terms: -3m + -6m = -9m
7 + -9m = -20

Solving
7 + -9m = -20

Solving for variable 'm'.

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

Add '-7' to each side of the equation.
7 + -7 + -9m = -20 + -7

Combine like terms: 7 + -7 = 0
0 + -9m = -20 + -7
-9m = -20 + -7

Combine like terms: -20 + -7 = -27
-9m = -27

Divide each side by '-9'.
m = 3

Simplifying
m = 3

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