(400+x)/x=9

Solution for (400+x)/x=9 equation:

(400+x)/x=9

We move all terms to the left:

(400+x)/x-(9)=0


Domain of the equation: x!=0

x∈R


We add all the numbers together, and all the variables

(x+400)/x-9=0

We multiply all the terms by the denominator


(x+400)-9*x=0

We add all the numbers together, and all the variables

-9x+(x+400)=0

We get rid of parentheses

-9x+x+400=0

We add all the numbers together, and all the variables

-8x+400=0

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

-8x=-400

x=-400/-8

x=+50