1x/x=21

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Solution for 1x/x=21 equation: 



1x/x=21

We move all terms to the left:

1x/x-(21)=0



Domain of the equation: x!=0

x∈R



We multiply all the terms by the denominator


1x-21*x=0

We add all the numbers together, and all the variables

-20x=0

x=0/-20

x=0

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