Verified answer

3•|2х-1|=39

|2х-1|=39:3

|2х-1|=13

2х-1=13 2х-1=-13

2х=13+1 2х=-13+1

2х=14 2х=-12

х=14:2 х=-12:2

х=7 х=-6

Ответ: 7;-6