Tentukan pertidaksamaan nilai mutlak berikut​

Jawaban:

|2x – 1 | + 5 = 8

|2x – 1 | = 8 – 5

|2x – 1 | = 3

2x – 1 = 3

= -3

2x -1 = 3

2x = 3 + 1

2x = 4

x = 4/2

x = 2

2x -1 = -3

2x = -3 + 1

2x = -2

x = -2/2

x = -1