what is the answer to 1/x=12/3x+9?

2007-09-02 16:49:37 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

ONE. Cross multiply to get 3x+9=12x and solve.

2007-09-02 17:02:10 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋

Cross multiply:

12x=1(3x+9)
-3x=-3x

9x=9

x=1

2007-09-03 00:05:52 · answer #2 · answered by IN0C3NT 2 · 0⤊ 0⤋

x=-2.356 or x=.106107

2007-09-02 23:56:21 · answer #3 · answered by isock86 3 · 0⤊ 0⤋

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