tolong jelaskan 3|5x+2|-2=6

Bab Nilai Mutlak
Matematika SMA Kelas X

3|5x + 2| - 2 = 6
3|5x + 2| = 6 + 2
|5x + 2| = 8/3

5x + 2 = 8/3
5x = 8/3 - 2
5x = 8/3 - 6/3
x = 2/(3 . 5)
x = 2/15

5x + 2 = -8/3
5x = -8/3 - 2
5x = -8/3 - 6/3
x = -14/(5 . 3)
x= -14/15

HP = { -14/15, 2/15 }