Selesaikan persamaan berikut dengan menggunakan tambah dan kurang |12×+6|=18

Bab Nilai Mutlak
Matematika SMA Kelas X

|12x + 6| = 18

12x + 6 = 18
12x = 18 - 6
x = 12/12
x = 1

12x + 6 = -18
12x = -18 - 6
x = -24/12
x = -2

HP = { -2, 1 }

|12x + 6| = 18
12x + 6 = 18
12x = 18 - 6
12x = 12
x = 12/12
x = 1

12x + 6 = -18
12x = - 18 - 6
12x = -24
x = -24/12
x = -2

HP = { 1, -2}