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数学
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x-1分之x-1=x+2分之3
人气:155 ℃ 时间:2020-06-20 07:22:56
解答
(x-1)分之(x-1)=(x+2)分之3
∴ 1(X≠1) =(x+2)分之3 X=1 不成立
(x-1)分之x-1=(x+2)分之3
通分得(x-1)分之1=(x+2)分之3
x+2=3x-3 ∴x=5/2
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