-3y-21=2(y-8)

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Solution for -3y-21=2(y-8) equation: 



-3y-21=2(y-8)

We move all terms to the left:

-3y-21-(2(y-8))=0



We calculate terms in parentheses: -(2(y-8)), so:

2(y-8)

We multiply parentheses

2y-16

Back to the equation:

-(2y-16)



We get rid of parentheses

-3y-2y+16-21=0

We add all the numbers together, and all the variables

-5y-5=0

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

-5y=5

y=5/-5

y=-1

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