-9m+2(m-4)=20

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Solution for -9m+2(m-4)=20 equation: 



-9m+2(m-4)=20

We move all terms to the left:

-9m+2(m-4)-(20)=0

We multiply parentheses

-9m+2m-8-20=0

We add all the numbers together, and all the variables

-7m-28=0

We move all terms containing m to the left, all other terms to the right

-7m=28

m=28/-7

m=-4

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