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35/55=21/ff=
We move all terms to the left:
35/55-(21/ff)=0
Domain of the equation: ff)!=0We add all the numbers together, and all the variables
f!=0/1
f!=0
f∈R
-(+21/ff)+35/55=0
We get rid of parentheses
-21/ff+35/55=0
We calculate fractions
There is no solution for this equation
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