4=72/y

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Solution for 4=72/y equation: 



4=72/y

We move all terms to the left:

4-(72/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

-(+72/y)+4=0

We get rid of parentheses

-72/y+4=0

We multiply all the terms by the denominator


4*y-72=0

We add all the numbers together, and all the variables

4y-72=0

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

4y=72

y=72/4

y=18

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