Question

解方程x的绝对值-1/2等于x的绝对值-3 x等于多少

Answer 1

应该是|x-1/2|=|x-3|

x-1/2=x-3或x-1/2=-(x-3)

第一个无解

x-1/2=-x+3

2x=7/2

x=7/4