很难的二元一次方程组的39道题

(51) 62x+79y=9108
37x-y=2701
答案：x=73 y=58
(52) 15x+81y=7239
87x-y=7221
答案：x=83 y=74
(53) 95x+79y=9624
57x-y=5016
答案：x=88 y=16
(54) 66x-35y=2137
34x-y=1768
答案：x=52 y=37
(55) 92x+98y=15400
72x-y=4536
答案：x=63 y=98
(56) 71x+19y=3301
62x-y=1240
答案：x=20 y=99
(57) 37x-95y=-93
37x+y=1332
答案：x=36 y=15
(58) 25x-47y=-300
47x+y=1645
答案：x=35 y=25
(59) 27x-51y=330
18x+y=1206
答案：x=67 y=29
(60) 36x+66y=5784
67x+y=5360
答案：x=80 y=44
(61) 92x-59y=1272
13x+y=780
答案：x=60 y=72
(62) 56x+47y=6561
42x+y=2982
答案：x=71 y=55
(63) 16x+54y=5804
43x+y=1376
答案：x=32 y=98
(64) 59x-69y=-2607
94x+y=3102
答案：x=33 y=66
(65) 51x+85y=7820
64x+y=1280
答案：x=20 y=80
(66) 40x-58y=-480
11x-y=187
答案：x=17 y=20
(67) 28x+42y=3108
51x-y=4284