12/x-1=20

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Solution for 12/x-1=20 equation: 



12/x-1=20

We move all terms to the left:

12/x-1-(20)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

12/x-21=0

We multiply all the terms by the denominator


-21*x+12=0

We add all the numbers together, and all the variables

-21x+12=0

We move all terms containing x to the left, all other terms to the right

-21x=-12

x=-12/-21

x=4/7

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