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

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



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

We move all terms to the left:

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



We calculate terms in parentheses: -(-9(y-9)), so:

-9(y-9)

We multiply parentheses

-9y+81

Back to the equation:

-(-9y+81)



We get rid of parentheses

3y+9y-81+9=0

We add all the numbers together, and all the variables

12y-72=0

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

12y=72

y=72/12

y=6

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