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16/21=6/x
We move all terms to the left:
16/21-(6/x)=0
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-(+6/x)+16/21=0
We get rid of parentheses
-6/x+16/21=0
We calculate fractions
There is no solution for this equation
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