6+3(-2m-6)=m+9

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Solution for 6+3(-2m-6)=m+9 equation: 



6+3(-2m-6)=m+9

We move all terms to the left:

6+3(-2m-6)-(m+9)=0

We multiply parentheses

-6m-(m+9)-18+6=0

We get rid of parentheses

-6m-m-9-18+6=0

We add all the numbers together, and all the variables

-7m-21=0

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

-7m=21

m=21/-7

m=-3

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