89=-3(m-3)-7m

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Solution for 89=-3(m-3)-7m equation: 



89=-3(m-3)-7m

We move all terms to the left:

89-(-3(m-3)-7m)=0



We calculate terms in parentheses: -(-3(m-3)-7m), so:

-3(m-3)-7m

We add all the numbers together, and all the variables

-7m-3(m-3)

We multiply parentheses

-7m-3m+9

We add all the numbers together, and all the variables

-10m+9

Back to the equation:

-(-10m+9)



We get rid of parentheses

10m-9+89=0

We add all the numbers together, and all the variables

10m+80=0

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

10m=-80

m=-80/10

m=-8

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