4/2=20/y

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Solution for 4/2=20/y equation: 



4/2=20/y

We move all terms to the left:

4/2-(20/y)=0



Domain of the equation: y)!=0

y!=0/1

y!=0

y∈R



We add all the numbers together, and all the variables

-(+20/y)+4/2=0

We add all the numbers together, and all the variables

-(+20/y)+2=0

We get rid of parentheses

-20/y+2=0

We multiply all the terms by the denominator


2*y-20=0

We add all the numbers together, and all the variables

2y-20=0

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

2y=20

y=20/2

y=10

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