[x-(1/x)] / [1+(1/x)] = 3
[x-(1/x)] / [1+(1/x)] = 3 Multiply top and bottom of your fraction by x so (x^2 - 1)/(x^2 + 1) = 3 cross-multiply x^2 - 1 = 3x^2 + 3 x^2 = -2 no real solution in complex numbers it would be x = ±(√2)i
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