解分式方程:x-1/x-2+1/2-x=3。要详细过程

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x-1/x-2+1/2-x=3
(x-1)/陆谈(x-2)-1/(x-2)=3
x-1-1=3(x-2)
x-2=3x-6
x-3x=-6+2
-2x=-4
x=2
∵x=2方程早明碰无意义槐灶
∴原方程无解

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(x-1)/(x-2)+1/(2-x)=3
((x-1)-1)/(x-2)=3
(x-2)/(x-2)=3 (x不铅搏等于2)
1=3 (方程型激衡无解卜做）

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-1/x-3/2=3 1/x=-3+1.5 x=-2/3

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