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12.5=4/y
We move all terms to the left:
12.5-(4/y)=0
Domain of the equation: y)!=0We add all the numbers together, and all the variables
y!=0/1
y!=0
y∈R
-(+4/y)+12.5=0
We get rid of parentheses
-4/y+12.5=0
We multiply all the terms by the denominator
(12.5)*y-4=0
We multiply parentheses
12.5y-4=0
We move all terms containing y to the left, all other terms to the right
12.5y=4
y=4/12.5
y=1/3.125
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