7y-(9y+15)=8-(4y-4)

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Solution for 7y-(9y+15)=8-(4y-4) equation: 



7y-(9y+15)=8-(4y-4)

We move all terms to the left:

7y-(9y+15)-(8-(4y-4))=0

We get rid of parentheses

7y-9y-(8-(4y-4))-15=0



We calculate terms in parentheses: -(8-(4y-4)), so:

8-(4y-4)

determiningTheFunctionDomain
-(4y-4)+8

We get rid of parentheses

-4y+4+8

We add all the numbers together, and all the variables

-4y+12

Back to the equation:

-(-4y+12)



We add all the numbers together, and all the variables

-2y-(-4y+12)-15=0

We get rid of parentheses

-2y+4y-12-15=0

We add all the numbers together, and all the variables

2y-27=0

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

2y=27

y=27/2

y=13+1/2

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