Jawabanmu

2014-02-12T16:32:34+07:00
X + 17 < 9
x + 17 - 17 < 9 - 17
x < -8
Jadi peyelesaiannya x < -8
HP = { ..., -11, -10, -9}
2014-02-12T16:32:47+07:00