1-x/x-2+2-1/2-x解方程要过程,
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1-x/x-2+2-1/2-x解方程要过程,1-x/x-2+2-1/2-x解方程要过程,1-x/x-2+2-1/2-x解方程要过程,(1-x)/(x-2)+2-1/(2-x)=[(1-x)+2(x-2
1-x/x-2+2-1/2-x解方程要过程,
1-x/x-2+2-1/2-x解方程要过程,
1-x/x-2+2-1/2-x解方程要过程,
(1-x)/(x-2)+2-1/(2-x)
=[(1-x)+2(x-2)+1]/(x-2)
=(1-x+2x-4+1)/(x-2)
=(x-2)/(x-2)
=1
是不是1-x/x-2=2-1/2-x?
两边乘x-2
1-x=2(x-2)+1
1-x=2x-4+1
3x=4
x=4/3
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