3=-84/y

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Solution for 3=-84/y equation: 



3=-84/y

We move all terms to the left:

3-(-84/y)=0



Domain of the equation: y)!=0

y!=0/1

y!=0

y∈R



We get rid of parentheses

84/y+3=0

We multiply all the terms by the denominator


3*y+84=0

We add all the numbers together, and all the variables

3y+84=0

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

3y=-84

y=-84/3

y=-28

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