(1)66x+17y=39672
5x+y=1200答案：x=48y=47
(2)18x+23y=2303
74x-y=1998答案：x=27y=79
(3)44x+90y=7796
44x+y=3476答案：x=79y=48
(4)76x-66y=408230x-y=2940
答案：x=98y=51
(5)67x+54y=8546
71x-y=5680
答案：x=80y=59
(6)42x-95y=-1410
21x-y=1575
答案：x=75y=48
(7)47x-40y=853
34x-y=2006
答案：x=59y=48
(8)19x-32y=-1786
75x+y=4950
答案：x=66y=95
(9)97x+24y=7202
58x-y=2900
答案：x=50y=98
(10)42x+85y=6362
63x-y=1638
答案：x=26y=62
书香门第
