|3x+4|<8 beserta caranya

Bab Nilai Mutlak
Matematika SMA Kelas X

|3x + 4| < 8

-8 < 3x + 4 < 8
-8 - 4 < 3x + 4 - 4 < 8 - 4
-12 < 3x < 4
-12/3 < 3x/3 < 4/3
-4 < x < 4/3

HP = { x | -4 < x < 4/3, x ∈ bilangan real }