如何解|2x-5/4+1/6|小于或等于2/3

问题描述:

如何解|2x-5/4+1/6|小于或等于2/3

|2x-5/4+1/6|≤2/3
l2x-13/12l≤2/3
-2/3≤2x-13/12≤2/3
-8/12+13/12≤2x≤8/12+13/12
5/12≤2x≤7/4
5/24≤x≤7/8