（1）2X＞8（2）4X＜16（3）7X＜14（4）8X＜12（5）1／2X＜8（6）50X＜68（7）8X-6＞128（8）4（3X-4）＞26（9）7X＞8（10）2（5X 3）＞10-9X（11）依次類推有無數(shù)個(gè)不等式!
(1) 66x 17y=3967
25x y=1200
答案：x=48 y=47
(2) 18x 23y=2303
74x-y=1998
答案：x=27 y=79
(3) 44x 90y=7796
44x y=3476
答案：x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案：x=98 y=51
(5) 67x 54y=8546
71x-y=5680
答案：x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案：x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案：x=59 y=48
(8) 19x-32y=-1786
75x y=4950
答案：x=66 y=95
(9) 97x 24y=7202
58x-y=2900
答案：x=50 y=98
(10) 42x 85y=6362
63x-y=1638
答案：x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案：x=18 y=44
(12) 79x 40y=2419
56x-y=1176
答案：x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案：x=40 y=12
(14) 32x 62y=5134
57x y=2850
答案：x=50 y=57
(15) 83x-49y=82
59x y=2183
答案：x=37 y=61
(16) 91x 70y=5845
95x-y=4275
答案：x=45 y=25
(17) 29x 44y=5281
88x-y=3608
答案：x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案：x=50 y=59
(19) 54x 68y=3284
78x y=1404
答案：x=18 y=34
(20) 8X 4Y=20
4X-Y=28
答案：X=2 Y=1