1-x/x-2+2-1/2-x解方程要过程,

分类: 作业答案 • 2021-12-28 11:26:34

问题描述：

答

(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