Solve: 1x−1−2x+1=1(x−1)(x+1)\frac{1}{x - 1} - \frac{2}{x + 1} = \frac{1}{(x - 1)(x + 1)}x−11−x+12=(x−1)(x+1)1
What is the sum of all solutions?
0
1
2
No solution exists