-30=6y+3(y-7)

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Solution for -30=6y+3(y-7) equation: 



-30=6y+3(y-7)

We move all terms to the left:

-30-(6y+3(y-7))=0



We calculate terms in parentheses: -(6y+3(y-7)), so:

6y+3(y-7)

We multiply parentheses

6y+3y-21

We add all the numbers together, and all the variables

9y-21

Back to the equation:

-(9y-21)



We get rid of parentheses

-9y+21-30=0

We add all the numbers together, and all the variables

-9y-9=0

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

-9y=9

y=9/-9

y=-1

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