Question

solve x- 5/x =4?

Answer 1

how did u get that?

Answer 2

yeah very confusing, I plugged it in the calculator but the answer isn't 4

Answer 3

simple you just subtract 4 because basically x=4 correct ? and so you plug 4 into x
and it would be 4-5=1

Answer 4

is that what your trying to solve for ?

Answer 5

no its like x- (5/x) =4

Answer 6

what does the whole question ask ?

Answer 7

solve that equation :(

Answer 8

does it have a number to put for x ?

Answer 9

nope

Answer 10

never mind i know how to do this so what you have to do is combine like terms as in both of the xs together x=-1

Answer 11

then? im so confused

Answer 12

First, let's work on the left hand side of your equation, the x- 5/x
This means, for instance, to see if it can be simplified at all.
To divide 1 by x

Answer 13

which is 1x -5/1x do you get it

Answer 14

yeahh

Answer 15

then after you combine like terms you simple try and get x alone

Answer 16

I don't know how to get x alone

Answer 17

\[x ^{2} -5=4\]
simple add 5 to both sides then you have 9
\[x^{2}= 9 \]
\[\sqrt{9} which would be x=3\]

Answer 18

which i dont get how you got 4

Answer 19

no that cant be right

Answer 20

1) What happens if you multiply everything by x?
2) What is the quadratic equation?

\[x - \frac{5}{x}=4\]
\[x^2−5=4x\]
\[x^2−4x−5=0\]


Now solve using the quadratic equation!
Quadratic Equation:
\[\frac{-b}{2a} \pm \sqrt{\frac{b^2-4ac}{2a}}\]

Answer 21

are you trying to the quadratic equation ?

Answer 22

im still not getting the right answer!

Answer 23

a = 1
b = -4
c = -5

You can verify your answers by plugging the result back into the original equation
(Hint: one of the two possible solutions is -1)

Hope that helps :)

Answer 24

I got -1 and 5

Answer 25

:S

Answer 26

That is correct :)
\[-1 - \frac{5}{-1} = 4\]
\[5 - \frac{5}{5} = 4\]

Answer 27

oh yay :D thanks!