Tentukan himpunan penyelesaian dari persamaan linear l2×+3|=15

|2x + 3| = 15

:• Positif

2x + 3 = 15

2x = 15 – 3

2x = 12

x = 12 ÷ 2

x = 6

:• Negatif

2x + 3 = -15

2x = -15 – 3

2x = -18

x = -18 : 2

x = –9

HP = {–9, 6}