Nilai mutlak dari 3|2x-6|=24

Bab Nilai Mutlak
Matematika SMA Kelas X

3 |2x - 6| = 24
|2x - 6| = 24/3
|2x - 6| = 8

2x - 6 = 8
2x = 8 + 6
x = 14/2
x = 7

2x - 6 = -8
2x = -8 + 6
x = -2/2
x = -1

HP = {-1, 7}

3(2x-6)=24
(6x-18)=24
(6x)=24+18
(6x)=42
(x) =7

Atau

(2x-6)=24/3
(2x-6)=8
(2x)=8+6
(2x)=14
(x) =7