Question

@mathmale I see your still here, mind helping with this last one?

Answer 1

Solve the equation. \[\frac{ 1 }{ x } = \frac{ 5 }{ x-4 }\]

Answer 2

@MathLegend

Answer 3

1/x = 5/(x - 4)
cross multiply
(5)(x) = (1)(x - 4)
5x = x - 4 --- subtract x from both sides
5x - x = -4
4x = -4 -- divide both sides by 4
x = -4/4
x = -1

check..
1/-1 = 5/(-1 - 4)
-1 = 5/-5
-1 = -1 (correct)

x = -1
any questions ?

Answer 4

Can you put the cross multiply in the equation thing so I can see it?

Answer 5

Also, where did the 5 go?

Answer 6

does that make sense to you ?