-91=-7(y+9)

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Solution for -91=-7(y+9) equation: 



-91=-7(y+9)

We move all terms to the left:

-91-(-7(y+9))=0



We calculate terms in parentheses: -(-7(y+9)), so:

-7(y+9)

We multiply parentheses

-7y-63

Back to the equation:

-(-7y-63)



We get rid of parentheses

7y+63-91=0

We add all the numbers together, and all the variables

7y-28=0

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

7y=28

y=28/7

y=4

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