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1/x-4-1/x=4/21
We move all terms to the left:
1/x-4-1/x-(4/21)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
1/x-1/x-4-(+4/21)=0
We get rid of parentheses
1/x-1/x-4-4/21=0
We calculate fractions
There is no solution for this equation
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