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b. X = -2 atau X = 2
|x+2| itu nilainya diantar -(x+2) dan (x+2)
jadi kalau |x+2| = 5
maka -(x+2)=5, 5=x+2
pertama
-(x+2)=5
x+2=-5
x=-7
kedua
x+2=5
x=3
jadi, x=-7 atau x=3
2.
|x+ 1 per 2 | = 3 per 2
maka -(x+1/2) = 3/2
x+1/2=-3/2
x=-4/2=-2
(x+1/2)=3/2
x=2/2=1
jadi x=-2 atau x=1