Can you help me to simplify this algebraic expression?

How can I simplify this algebraic expression?

$\frac{-2}{{x}^{2}-1}+\frac{x}{x+1}-\frac{1}{x-1}$

How can I simplify this algebraic expression?

$\frac{-2}{{x}^{2}-1}+\frac{x}{x+1}-\frac{1}{x-1}$