7=-7y+2(y-4)

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Solution for 7=-7y+2(y-4) equation: 



7=-7y+2(y-4)

We move all terms to the left:

7-(-7y+2(y-4))=0



We calculate terms in parentheses: -(-7y+2(y-4)), so:

-7y+2(y-4)

We multiply parentheses

-7y+2y-8

We add all the numbers together, and all the variables

-5y-8

Back to the equation:

-(-5y-8)



We get rid of parentheses

5y+8+7=0

We add all the numbers together, and all the variables

5y+15=0

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

5y=-15

y=-15/5

y=-3

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