4=(y+7)/(y-7)=

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Solution for 4=(y+7)/(y-7)= equation: 



4=(y+7)/(y-7)=

We move all terms to the left:

4-((y+7)/(y-7))=0



Domain of the equation: (y-7))!=0

y∈R



We multiply all the terms by the denominator


-((y+7)+4*(y-7))=0



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

(y+7)+4*(y-7)

We multiply parentheses

(y+7)+4y-28

We get rid of parentheses

y+4y+7-28

We add all the numbers together, and all the variables

5y-21

Back to the equation:

-(5y-21)



We get rid of parentheses

-5y+21=0

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

-5y=-21

y=-21/-5

y=4+1/5

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