-9=7(1+4m)+8(3-6m)

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Solution for -9=7(1+4m)+8(3-6m) equation: 



-9=7(1+4m)+8(3-6m)

We move all terms to the left:

-9-(7(1+4m)+8(3-6m))=0

We add all the numbers together, and all the variables

-(7(4m+1)+8(-6m+3))-9=0



We calculate terms in parentheses: -(7(4m+1)+8(-6m+3)), so:

7(4m+1)+8(-6m+3)

We multiply parentheses

28m-48m+7+24

We add all the numbers together, and all the variables

-20m+31

Back to the equation:

-(-20m+31)



We get rid of parentheses

20m-31-9=0

We add all the numbers together, and all the variables

20m-40=0

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

20m=40

m=40/20

m=2

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