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数学
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若分式方程x-1分之x+a=a无解,则a的值是 速度
人气:150 ℃ 时间:2020-05-24 08:04:05
解答
x+a=a(x-1),(a-1)x=2a,若a不等于1,则x=2a/(a-1),否则无解
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