(1)|4x-1|=9 (2)2|x-3|+5=13
问题描述:
(1)|4x-1|=9 (2)2|x-3|+5=13
答
|4x-1|=9
4x-1=±3
4x=4或4x=-2
x=1或x=-½
2|x-3|+5=13
2|x-3|=8
|x-3|=4
x-3=±4
x=7或x=-1