一元一次不等式 一元二次方程 二元一次方程 共30道 帮帮忙啦 要有过程和答案的哟 谢啦

Answer 1

1) 66x 17y=3967
25x y=1200
答案：x=48 y=47
⑵ 18x 23y=2303
74x-y=1998
答案：x=27 y=79
⑶ 44x 90y=7796
44x y=3476
答案：x=79 y=48
⑷ 76x-66y=4082
30x-y=2940
答案：x=98 y=51
⑸ 67x 54y=8546
71x-y=5680
答案：x=80 y=59
⑹ 42x-95y=-1410
21x-y=1575
答案：x=75 y=48
⑺ 47x-40y=853
34x-y=2006
答案：x=59 y=48
⑻ 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
⑽ 42x 85y=6362
63x-y=1638
答案：x=26 y=62
⑾ 85x-92y=-2518
27x-y=486
答案：x=18 y=44
⑿ 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
⒁ 32x 62y=5134
57x y=2850
答案：x=50 y=57
⒂ 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) 70x 13y=3520
52x y=2132
答案：x=41 y=50
(21) 48x-54y=-3186
24x y=1080
答案：x=45 y=99
(22) 36x 77y=7619
47x-y=799
答案：x=17 y=91
(23) 13x-42y=-2717
31x-y=1333
答案：x=43 y=78
(24) 28x 28y=3332
52x-y=4628
答案：x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
答案：x=44 y=54
(26) 79x-76y=-4388
26x-y=832
答案：x=32 y=91
(27) 63x-40y=-821
42x-y=546
答案：x=13 y=41
(28) 69x-96y=-1209
42x y=3822
答案：x=91 y=78
(29) 85x 67y=7338
11x y=308
答案：x=28 y=74
(30) 78x 74y=12928
14x y=1218
答案：x=87 y=83

Answer 2

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