8y-8=-8(y-9)

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Solution for 8y-8=-8(y-9) equation: 



8y-8=-8(y-9)

We move all terms to the left:

8y-8-(-8(y-9))=0



We calculate terms in parentheses: -(-8(y-9)), so:

-8(y-9)

We multiply parentheses

-8y+72

Back to the equation:

-(-8y+72)



We get rid of parentheses

8y+8y-72-8=0

We add all the numbers together, and all the variables

16y-80=0

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

16y=80

y=80/16

y=5

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