Jawabanmu

2014-02-13T14:00:49+07:00
2014-02-13T14:17:03+07:00
3x -2 < x + 8
= 3x - 2 + 2 < x + 8 + 2
= 3x < x + 10
= 3x - x < x + 10 - x
= 2x < 10
= x < 5
hp = { 4, 3, 2, 1, ... }
                                                
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
                                   ∧