For this question, I decided to first distribute the (1/2). However, I got stuck as the picture will show.
You will find this problem MUCH easier if you simplify the logarithm first: $\displaystyle \displaystyle \begin{align*} \ln{ \left( \frac{x + 1}{x - 1} \right) } = \ln{ \left( x + 1 \right) } - \ln{ \left( x - 1 \right) } \end{align*}$.