二元一次方程组习题及答案道

二元一次方程组习题及

答案道

文稿归稿存档编号：[KKUY-KKIO69-OTM243-OLUI129-G00I-FDQS58-

二元一次方程组习题及答案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

1)66x+17y=3967 25x+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=4082 30x-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 (11)85x-92y=-2518 27x-y=486

答案：x=18y=44 (12)79x+40y=2419 56x-y=1176

答案：x=21y=19 (13)80x-87y=2156 22x-y=880

答案：x=40y=12 (14)32x+62y=5134 57x+y=2850

答案：x=50y=57 (15)83x-49y=82

59x+y=2183

答案：x=37y=61 (16)91x+70y=5845 95x-y=4275

答案：x=45y=25

(17)29x+44y=5281 88x-y=3608

答案：x=41y=93 (18)25x-95y=-4355 40x-y=2000

答案：x=50y=59 (19)54x+68y=3284 78x+y=1404

答案：x=18y=34 (20)70x+13y=3520 52x+y=2132

答案：x=41y=50 (21)48x-54y=-3186 24x+y=1080

答案：x=45y=99 (22)36x+77y=7619 47x-y=799

答案：x=17y=91 (23)13x-42y=-2717 31x-y=1333

答案：x=43y=78 (24)28x+28y=3332

52x-y=4628

答案：x=89y=30 (25)62x-98y=-2564 46x-y=2024

答案：x=44y=54 (26)79x-76y=-4388 26x-y=832

答案：x=32y=91 (27)63x-40y=-821 42x-y=546

答案：x=13y=41 (28)69x-96y=-1209 42x+y=3822

答案：x=91y=78 (29)85x+67y=7338 11x+y=308

答案：x=28y=74 (30)78x+74y=12928 14x+y=1218

答案：x=87y=83 (31)39x+42y=5331 59x-y=5841

答案：x=99y=35 (32)29x+18y=1916 58x+y=2320

答案：x=40y=42 (33)40x+31y=6043 45x-y=3555

答案：x=79y=93 (34)47x+50y=8598 45x+y=3780

答案：x=84y=93 (35)45x-30y=-1455 29x-y=725

答案：x=25y=86 (36)11x-43y=-1361 47x+y=799

答案：x=17y=36 (37)33x+59y=3254 94x+y=1034

答案：x=11y=49 (38)89x-74y=-2735 68x+y=1020

答案：x=15y=55