_二元一次方程组练习题100道
1. 2x+9y=81
3x+y=34
2.9x+4y=35
8x+3y=30
3.7x+2y=52
7x+4y=62
4.4x+6y=54
9x+2y=87
5.2x+y=7
2x+5y=19
6.x+2y=21
3x+5y=56
7.5x+7y=52
5x+2y=22
8.5x+5y=65
7x+7y=203
9.8x+4y=56
x+4y=21
10.5x+7y=41
5x+8y=44
11.7x+5y=54
3x+4y=38
12.x+8y=15
4x+y=29
13.3x+6y=24
9x+5y=46
14.9x+2y=62
4x+3y=36
15.9x+4y=46
7x+4y=42
16.9x+7y=135
4x+y=41
17.3x+8y=51
x+6y=27
18.9x+3y=99
4x+7y=95
19.9x+2y=38
3x+6y=18
20.5x+5y=45
7x+9y=69
21.8x+2y=28
7x+8y=62
22.x+6y=14
3x+3y=27
23.7x+4y=67
2x+8y=26
24.5x+4y=52
7x+6y=74
25.7x+y=9
4x+6y=16
26.6x+6y=48
6x+3y=42
27.8x+2y=16
7x+y=11
28.4x+9y=77
8x+6y=94
29.6x+8y=68
7x+6y=66
30.2x+2y=22
7x+2y=47
（31）. x-y=3
3x-8y=4
x=y+3
（32）. 3x+2y=7
5x-2y=1
（33）. x=3-5t
3y-2t=x
(34) 47x+50y=8598
45x+y=3780
(35) 45x-30y=-1455
29x-y=725
(36) 11x-43y=-1361
47x+y=799
(37) 33x+59y=3254
94x+y=1034
(38) 89x-74y=-2735
68x+y=1020
(39) 94x+71y=7517
78x+y=3822
(40) 28x-62y=-4934
46x+y=552
(41) 75x+43y=8472
17x-y=1394
(42) 41x-38y=-1180
29x+y=1450
(43) 22x-59y=824
63x+y=4725
(44) 95x-56y=-401
90x+y=1530
(45) 93x-52y=-852
29x+y=464
(46) 93x+12y=8823
54x+y=4914
(47) 21x-63y=84
20x+y=1880
(48) 48x+93y=9756
38x-y=950
(49) 99x-67y=4011
75x-y=5475
(50) 83x+64y=9291
90x-y=3690
(51) 66x+17y=3967
25x+y=1200
答案：x=48 y=47
(52) 18x+23y=2303
74x-y=1998
答案：x=27 y=79
(53) 44x+90y=7796
44x+y=3476
答案：x=79 y=48
(54) 76x-66y=4082
30x-y=2940
答案：x=98 y=51
(55) 67x+54y=8546
71x-y=5680
答案：x=80 y=59
(56) 42x-95y=-1410
21x-y=1575
答案：x=75 y=48
(57) 47x-40y=853
34x-y=2006
答案：x=59 y=48
(58) 19x-32y=-1786
75x+y=4950
答案：x=66 y=95
(59) 97x+24y=7202
58x-y=2900
答案：x=50 y=98
(60) 42x+85y=6362
63x-y=1638
答案：x=26 y=62
(61) 85x-92y=-2518
27x-y=486
答案：x=18 y=44
(62) 79x+40y=2419
56x-y=1176
答案：x=21 y=19
(63) 80x-87y=2156
22x-y=880
答案：x=40 y=12
(64) 32x+62y=5134
57x+y=2850
答案：x=50 y=57
(65) 83x-49y=82
59x+y=2183
答案：x=37 y=61
(66) 91x+70y=5845
95x-y=4275
答案：x=45 y=25
(67) 29x+44y=5281
88x-y=3608
答案：x=41 y=93
(68) 25x-95y=-4355
40x-y=2000
答案：x=50 y=59
(69) 54x+68y=3284
78x+y=1404
答案：x=18 y=34
(70) 70x+13y=3520
52x+y=2132
答案：x=41 y=50
(71) 48x-54y=-3186
24x+y=1080
答案：x=45 y=99
(72) 36x+77y=7619
47x-y=799
答案：x=17 y=91
(73) 13x-42y=-2717
31x-y=1333
答案：x=43 y=78
(74) 28x+28y=3332
52x-y=4628
答案：x=89 y=30
(75) 62x-98y=-2564
46x-y=2024
答案：x=44 y=54
(76) 79x-76y=-4388
26x-y=832
答案：x=32 y=91
(77) 63x-40y=-821
42x-y=546
答案：x=13 y=41
(78) 69x-96y=-1209
42x+y=3822
答案：x=91 y=78
(79) 85x+67y=7338
11x+y=308
答案：x=28 y=74
(80) 78x+74y=12928
14x+y=1218
答案：x=87 y=83
(81) 39x+42y=5331
59x-y=5841
答案：x=99 y=35
(82) 29x+18y=1916
58x+y=2320
答案：x=40 y=42
(83) 40x+31y=6043
45x-y=3555
答案：x=79 y=93
(84) 47x+50y=8598
45x+y=3780
答案：x=84 y=93
(85) 45x-30y=-1455
29x-y=725
答案：x=25 y=86
(86) 11x-43y=-1361
47x+y=799
答案：x=17 y=36
(87) 33x+59y=3254
94x+y=1034
答案：x=11 y=49
(88) 89x-74y=-2735
68x+y=1020
答案：x=15 y=55
(89) 94x+71y=7517
78x+y=3822
答案：x=49 y=41
(90) 28x-62y=-4934
46x+y=552
答案：x=12 y=85
(91) 75x+43y=8472
17x-y=1394
答案：x=82 y=54
(92) 41x-38y=-1180
29x+y=1450
答案：x=50 y=85
(93) 22x-59y=824
63x+y=4725
答案：x=75 y=14
(94) 95x-56y=-401
90x+y=1530
答案：x=17 y=36
(95) 93x-52y=-852
29x+y=464
答案：x=16 y=45
(96) 93x+12y=8823
54x+y=4914
答案：x=91 y=30
(97) 21x-63y=84
20x+y=1880
答案：x=94 y=30
(98) 48x+93y=9756
38x-y=950
答案：x=25 y=92
(99) 99x-67y=4011
75x-y=5475
答案：x=73 y=48
(100）83x+64y=9291
90x-y=3690
答案：x=41 y=92