-12m-3m=-6(1+7m)+6(-8+9m)

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Solution for -12m-3m=-6(1+7m)+6(-8+9m) equation: 



-12m-3m=-6(1+7m)+6(-8+9m)

We move all terms to the left:

-12m-3m-(-6(1+7m)+6(-8+9m))=0

We add all the numbers together, and all the variables

-12m-3m-(-6(7m+1)+6(9m-8))=0

We add all the numbers together, and all the variables

-15m-(-6(7m+1)+6(9m-8))=0



We calculate terms in parentheses: -(-6(7m+1)+6(9m-8)), so:

-6(7m+1)+6(9m-8)

We multiply parentheses

-42m+54m-6-48

We add all the numbers together, and all the variables

12m-54

Back to the equation:

-(12m-54)



We get rid of parentheses

-15m-12m+54=0

We add all the numbers together, and all the variables

-27m+54=0

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

-27m=-54

m=-54/-27

m=+2

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