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3=84/y
We move all terms to the left:
3-(84/y)=0
Domain of the equation: y)!=0We add all the numbers together, and all the variables
y!=0/1
y!=0
y∈R
-(+84/y)+3=0
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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