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mencari nilai x
|3 -3x| < 6
-6 < 3 -3x <6
-6 -3 < -3x < 6 -3
-9 < -3x < 3
x < 3 atau x > -1
maka hp
= { -1 < x < 3 }
= { 0, 1, 2 }
selamat belajar
~dhika~