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|x|<p artinya -p<x<p
jdi
|2x-1|<3
2x-1= x
3 = p
-3 < 2x-1 < 3 ( semua ruas +1)
-3 +1 < 2x-1+1 < 3+1
-2< 2x < 4 ( semua ruas dibagi 2)
-2/2 < 2x/2 < 4/2
-1 < x <2
semoga manfaat
maaf kalau salah