Question

If x ≠ 0, then u/x +5u/x - u/5x =

Answer 1

u/x +5u/x - u/5x = (1/x) (u + 5u -u/5)

Answer 2

^ haha um, wrong thread.?

Answer 3

but,

(1/x) (u + 5u -u/5)

should the u+5u be over the u/5?

Answer 4

u/x +5u/x - u/5x = (1/x) (u + 5u -u/5) = (u/x) (1 + 5 - 1/5) = 31/5

Answer 5

29/5

Answer 6

Hold on,
it's easier if I write this on paper to see the fractions clearer,

Answer 7

I am so lost on how you got 31

Answer 8

change it to 29/5
(5X6 -1)/5

Answer 9

Okay, now I'm lost on how you got (5x6-1)/5...

Answer 10

u/x +5u/x - u/5x = (1/x) (u + 5u -u/5) = (u/x) (1 + 5 - 1/5)
6 - 1/5 = (30 -1)/5
I found common denominator
1/a + 1/b = (1/a) (b/b) + (1/b) (a/a) = (a + b)/ab

Answer 11

final answer
29u/(5x)

Answer 12

I'm still so lost.. you got the 6 fro adding 1+5?

Answer 13

true but you must subtract 1/5

Answer 14

so 6/1 - 1/5.?

Answer 15

yes

Answer 16

Ok, and why would it be 31 instead of 29.?
do I have to do the opposite and add instead of subtract

Answer 17

it should be 29, I made error first time. original equation subtracted 1/5 not added 1/5

Answer 18

ah okay,
thanks for the help.!
I'm re-taking my mathematics placement testing tomorrow, so I really appreciate it