-9=2(y+3)-7y

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Solution for -9=2(y+3)-7y equation: 



-9=2(y+3)-7y

We move all terms to the left:

-9-(2(y+3)-7y)=0



We calculate terms in parentheses: -(2(y+3)-7y), so:

2(y+3)-7y

We add all the numbers together, and all the variables

-7y+2(y+3)

We multiply parentheses

-7y+2y+6

We add all the numbers together, and all the variables

-5y+6

Back to the equation:

-(-5y+6)



We get rid of parentheses

5y-6-9=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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