solve
x/x-9 -4 = 9/x-9
2007-02-22 12:14:17 · 4 answers · asked by DEE L 2 in Science & Mathematics ➔ Mathematics
x/x - 9 - 4 = 9/x - 9 ==> (since x/x = 1)
1 - 9 - 4 = 9/x - 9 ==>
-12 = 9/x - 9 ==>
-3 = 9/x ==>
x = 9 / (-3) ==>
x = -3
2007-02-22 12:18:24 · answer #1 · answered by iluxa 5 · 0⤊ 0⤋
If U mean x/(x-9) - 4 = 9/(x-9)
Multiplying the bothh sides by ((x-9) ( assuming that x >< 9)
x - 4(x-9) = 9
x - 4x + 36 = 9
- 3x = -27 ---> x=9 refussed, so ther is no solution in R
2007-02-22 20:25:21 · answer #2 · answered by a_ebnlhaitham 6 · 0⤊ 0⤋
Common den. is x-9. Muly bt it.
x - 4(x - 9) = 9
x - 4x + 36 = 9
-3x = -27
x = 9, but 9 can not be used. No solution.
2007-02-22 20:21:22 · answer #3 · answered by richardwptljc 6 · 0⤊ 0⤋
hmm it seems simple unless you mean x/(x-9-4) = 9/(x-9)
i got x to equal -3 personally. but i might have done it wrong.
please write the equation out clearer.
x/x = 1
-9-4 = -13
it's not that tough :-)
2007-02-22 20:21:57 · answer #4 · answered by Tim C 5 · 0⤊ 0⤋