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

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



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

We move all terms to the left:

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



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

3(y-3)-6y

We add all the numbers together, and all the variables

-6y+3(y-3)

We multiply parentheses

-6y+3y-9

We add all the numbers together, and all the variables

-3y-9

Back to the equation:

-(-3y-9)



We get rid of parentheses

3y+9-30=0

We add all the numbers together, and all the variables

3y-21=0

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

3y=21

y=21/3

y=7

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