how do i solve 5/x=x-4?

Question

find the error on
5/x=x-4
x*5/x=x-4
5=x-4
x=9

Answer 1

if your solving for zero, then what i did was to multiply both sides by x. Once you do that it should equal 5=x(x-4). Then distribute and you get 5=x^2-4x. Subtract the 5 over and then factor. should be something like x^2-4x-5=0. I got (x+1)(x-5)=0

Answer 2

You have to multiply both sides by x.



So then 5 = x^2 - 4x



Or. x^2 - 4x - 5 = 0



x = -1 and x= 5

Answer 3

you forgot to multiply the x-4 by x.

Answer 4

What the person above said.

Also wolframalpha.com

Answer 5

with a calculator