-1=-7y+5(y+3)

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Solution for -1=-7y+5(y+3) equation: 



-1=-7y+5(y+3)

We move all terms to the left:

-1-(-7y+5(y+3))=0



We calculate terms in parentheses: -(-7y+5(y+3)), so:

-7y+5(y+3)

We multiply parentheses

-7y+5y+15

We add all the numbers together, and all the variables

-2y+15

Back to the equation:

-(-2y+15)



We get rid of parentheses

2y-15-1=0

We add all the numbers together, and all the variables

2y-16=0

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

2y=16

y=16/2

y=8

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