20=(x-20)/x

Solution for 20=(x-20)/x equation:

20=(x-20)/x

We move all terms to the left:

20-((x-20)/x)=0


Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R


We multiply all the terms by the denominator


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


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

(x-20)+20*x

We add all the numbers together, and all the variables

20x+(x-20)

We get rid of parentheses

20x+x-20

We add all the numbers together, and all the variables

21x-20

Back to the equation:

-(21x-20)


We get rid of parentheses

-21x+20=0

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

-21x=-20

x=-20/-21

x=20/21