-8=-(-9+m)

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Solution for -8=-(-9+m) equation: 



-8=-(-9+m)

We move all terms to the left:

-8-(-(-9+m))=0

We add all the numbers together, and all the variables

-(-(m-9))-8=0



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

-(m-9)

We get rid of parentheses

-m+9

We add all the numbers together, and all the variables

-1m+9

Back to the equation:

-(-1m+9)



We get rid of parentheses

1m-9-8=0

We add all the numbers together, and all the variables

m-17=0

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

m=17

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