Solve: x+1x−1−x−1x+1=43\frac{x+1}{x-1} - \frac{x-1}{x+1} = \frac{4}{3}x−1x+1−x+1x−1=34
x=2,−2x = 2, -2x=2,−2
x=1,−1x = 1, -1x=1,−1
x=2x = 2x=2
x=−2x = -2x=−2