7y-(9y+18)=7-(5y-4)

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Solution for 7y-(9y+18)=7-(5y-4) equation: 



7y-(9y+18)=7-(5y-4)

We move all terms to the left:

7y-(9y+18)-(7-(5y-4))=0

We get rid of parentheses

7y-9y-(7-(5y-4))-18=0



We calculate terms in parentheses: -(7-(5y-4)), so:

7-(5y-4)

determiningTheFunctionDomain
-(5y-4)+7

We get rid of parentheses

-5y+4+7

We add all the numbers together, and all the variables

-5y+11

Back to the equation:

-(-5y+11)



We add all the numbers together, and all the variables

-2y-(-5y+11)-18=0

We get rid of parentheses

-2y+5y-11-18=0

We add all the numbers together, and all the variables

3y-29=0

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

3y=29

y=29/3

y=9+2/3

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