pembahasan :
|x + 2| < 1
-1 < x + 2 < 1
-1 -2 < x < 1 -2
-3 < x < -1
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pembahasan :
|x + 2| < 1
-1 < x + 2 < 1
-1 -2 < x < 1 -2
-3 < x < -1