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|2x-3| < 5
-5 < 2x - 3 < 5
-5+3 < 2x < 5+3
-2 < 2x < 8
-2/2 < x < 8/2
-1 < x < 4
Hp = { x | -1 < x < 4 }
B.)
|x| > 1
x < -1 atau x > 1
Hp = { x | x < -1 atau x > 1 }