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80/x=x/20=80*20=2x=1600=2x=1600/2=x=800=x
We move all terms to the left:
80/x-(x/20)=0
Domain of the equation: x!=0We add all the numbers together, and all the variables
x∈R
80/x-(+x/20)=0
We get rid of parentheses
80/x-x/20=0
We calculate fractions
There is no solution for this equation
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