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4/7=5/f
We move all terms to the left:
4/7-(5/f)=0
Domain of the equation: f)!=0We add all the numbers together, and all the variables
f!=0/1
f!=0
f∈R
-(+5/f)+4/7=0
We get rid of parentheses
-5/f+4/7=0
We calculate fractions
There is no solution for this equation
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