4×X<24
X<24:4
X<6
X{0,1,2,3,4,5}
3 ×X<33
X<33:3
X<11
X{0,1,2,3,4,5,6,.....,11}
X:2<7
X<7×2
X<14
X{0,1,2,...,13}
X:4<2
X<4×2
X<8
X{0,1,2,3,4,5,6,7,8
X:3<5
X<5×3
X<15
X{0,1,2,....,14}
X:6<4
X<6×4
X<24
X{0,1,2,....,24}
3×X+11<44
3X+11<44
3X<44-11
3X<33
X<33:3
X<11
X{0,1,2,3,....,10}
3+7×X<52
3+7X<52
7X<52-3
7X<49:7
X<7
X{0,1,2,3,4,5,6,7}
5×X-23>22
5X-23>22
5X>22+23
5X>45
X>45:5
X>9
X{9,10,......}
6×X-18>72
6X-18>72
6X>72+18
6X>90
X>90:6
X>15
X{15,16,......,}
