(3+y)/(y+7)=3/5

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Solution for (3+y)/(y+7)=3/5 equation: 



(3+y)/(y+7)=3/5

We move all terms to the left:

(3+y)/(y+7)-(3/5)=0



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

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

y!=-7

y∈R



We add all the numbers together, and all the variables

(y+3)/(y+7)-(+3/5)=0

We get rid of parentheses

(y+3)/(y+7)-3/5=0

We calculate fractions


(5y+15)/(5y+35)+(-3y-21)/(5y+35)=0

We multiply all the terms by the denominator


(5y+15)+(-3y-21)=0

We get rid of parentheses

5y-3y+15-21=0

We add all the numbers together, and all the variables

2y-6=0

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

2y=6

y=6/2

y=3

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