0.25=(x-100)/x

Solution for 0.25=(x-100)/x equation:

0.25=(x-100)/x

We move all terms to the left:

0.25-((x-100)/x)=0


Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R


We multiply all the terms by the denominator


-((x-100)+(0.25)*x)=0


We calculate terms in parentheses: -((x-100)+(0.25)*x), so:

(x-100)+(0.25)*x

We multiply parentheses

(x-100)+0.25x

We get rid of parentheses

x+0.25x-100

We add all the numbers together, and all the variables

1.25x-100

Back to the equation:

-(1.25x-100)


We get rid of parentheses

-1.25x+100=0

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

-1.25x=-100

x=-100/-1.25

x=+80