20=(x)/(500+x)*100

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Solution for 20=(x)/(500+x)*100 equation: 



20=(x)/(500+x)*100

We move all terms to the left:

20-((x)/(500+x)*100)=0



Domain of the equation: (500+x)*100)!=0

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

x)*100!=-500

x!=-500/1

x!=-500

x∈R



We add all the numbers together, and all the variables

-(x/(x+500)*100)+20=0

We multiply all the terms by the denominator


-(x+20*(x+500)*100)=0



We calculate terms in parentheses: -(x+20*(x+500)*100), so:

x+20*(x+500)*100

We multiply parentheses

x+2000x+1000000

We add all the numbers together, and all the variables

2001x+1000000

Back to the equation:

-(2001x+1000000)



We get rid of parentheses

-2001x-1000000=0

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

-2001x=1000000

x=1000000/-2001

x=-499+1501/2001

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