-7=2(m-9)-9

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Solution for -7=2(m-9)-9 equation: 



-7=2(m-9)-9

We move all terms to the left:

-7-(2(m-9)-9)=0



We calculate terms in parentheses: -(2(m-9)-9), so:

2(m-9)-9

We multiply parentheses

2m-18-9

We add all the numbers together, and all the variables

2m-27

Back to the equation:

-(2m-27)



We get rid of parentheses

-2m+27-7=0

We add all the numbers together, and all the variables

-2m+20=0

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

-2m=-20

m=-20/-2

m=+10

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