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5/140=12/d
We move all terms to the left:
5/140-(12/d)=0
Domain of the equation: d)!=0We add all the numbers together, and all the variables
d!=0/1
d!=0
d∈R
-(+12/d)+5/140=0
We get rid of parentheses
-12/d+5/140=0
We calculate fractions
There is no solution for this equation
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