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Verified answer
[1.]2|4x - 2| - 6=6
2|4x - 2| = 12
|4x - 2| = 6
4x - 2=6 atau 4x - 2=-6
4x = 8 atau 4x = -4
x=2 atau x=-1
HP:{-1,2}
[2.]
|x - 3| + 6 < 12
|x - 3| < 6
-6 < x - 3 < 6 ( + 3)
-3 < x < 9
HP : {x | -3 < x < 9 , x ∈ R}
[3.]
2|2 - 3x| - 4 < 12
2|2 - 3x| < 16
|2 - 3x| < 8
-8 < 2 - 3x < 8 ( - 2)
-10 < -3x < 6 ( : -3)
10/3 > x > -2
-2 < x < 10/3
HP : {x | -2 < x < 10/3 , x ∈ R}