420=1400/(250*x)

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Solution for 420=1400/(250*x) equation: 



420=1400/(250x)

We move all terms to the left:

420-(1400/(250x))=0



Domain of the equation: 250x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+1400/250x)+420=0

We get rid of parentheses

-1400/250x+420=0

We multiply all the terms by the denominator


420*250x-1400=0

Wy multiply elements

105000x-1400=0

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

105000x=1400

x=1400/105000

x=1/75

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