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3x <5-2
3x <3
x < 3:3
x < 1
maaf kalo salah
| 3x + 2 | < 5
↓
-5 < 3x + 2 < 5
-5 - 2 < 3x < 5 - 2
-7 < 3x < 3
-7/3 < x < 3/3
-2 1/3 < x < 1