Question

please solve this (x+1/x)/(x-1/x)=3

Answer 1

$( \frac{x + 1}{x}) \div ( \frac{x - 1}{x} ) = 3 \\ x {}^{2} - 1 {}^{2} = 3 \\ x {}^{2} - 1 = 3 \\ x {}^{2} = 3 - 1 \\ x {}^{2} = 2 \\ x = \sqrt{2}$

I hope that will help you