分式方程3x11x−1的解是()A．x2B．x1C．x−12

更新 2022-09-04
科目数学
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难度中等
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挑错有奖

分式方程 $\frac{3}{x + 1} = \frac{1}{x - 1}$ 的解是 $($ 　　 $)$

A ． $x = 2$ B ． $x = 1$ C ． $x = - \frac{1}{2}$ D ． $x = - 1$

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