1)0 <= 1-2x/3 <3
0 <= (3-2x)/3 <3
0 <= 3-2x <9
3 <= -2x <12
-1,5 => x > -6
2) 2< x/3-1/2 <= 0
2< (2x-3)/6 <= 0
12< 2x-3 <= 0
15< 2x <= 3
30< x <= 6
3) -3 < 1 -(2-x)/3<3
-3 < (1-x)/3<3
-9 < 1-x <9
-10 < -x <8
-10 > -x >8
1)0 <= 1-2x/3 <3
0 <= (3-2x)/3 <3
0 <= 3-2x <9
3 <= -2x <12
-1,5 => x > -6
2) 2< x/3-1/2 <= 0
2< (2x-3)/6 <= 0
12< 2x-3 <= 0
15< 2x <= 3
30< x <= 6
3) -3 < 1 -(2-x)/3<3
-3 < (1-x)/3<3
-9 < 1-x <9
-10 < -x <8
-10 > -x >8