20/x=400

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Solution for 20/x=400 equation: 



20/x=400

We move all terms to the left:

20/x-(400)=0



Domain of the equation: x!=0

x∈R



We multiply all the terms by the denominator


-400*x+20=0

We add all the numbers together, and all the variables

-400x+20=0

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

-400x=-20

x=-20/-400

x=1/20

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