2|x-1|+3=9怎么解
问题描述:
2|x-1|+3=9怎么解
答
2|x-1|=6
|x-1|=3
x-1=3或x-1=-3
x=4或-2
2|x-1|+3=9怎么解
2|x-1|=6
|x-1|=3
x-1=3或x-1=-3
x=4或-2