Question

please solve this question in 5 minutes please​

Answer 1

$\frac{2x}{ 1 + \frac{1}{1 + \frac{x}{1 - x} } } \\ \\ \frac{2x}{1 + \frac{1}{ \frac{(1 - x) + x}{1 - x} } } \\ \\ \frac{2x}{1 + \frac{1(1 - x)}{1} } \\ \\ \frac{2x}{2 - x} \\ \\ this \: is \: equal \: to \: one.... \\ \\ \frac{2x}{2 - x} = 1 \\ \\ 2x = 2 - x \\ \\ 3x = 2 \\ \\ x = \frac{2}{3}$