-(m-9)=-2(m+1)

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Solution for -(m-9)=-2(m+1) equation: 



-(m-9)=-2(m+1)

We move all terms to the left:

-(m-9)-(-2(m+1))=0

We get rid of parentheses

-m-(-2(m+1))+9=0



We calculate terms in parentheses: -(-2(m+1)), so:

-2(m+1)

We multiply parentheses

-2m-2

Back to the equation:

-(-2m-2)



We add all the numbers together, and all the variables

-1m-(-2m-2)+9=0

We get rid of parentheses

-1m+2m+2+9=0

We add all the numbers together, and all the variables

m+11=0

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

m=-11

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