二元一次方程组计算题100题

.

1.2x+9y=81

3x+y=34

6.x+2y=21

3x+5y=56

2.9x+4y=35

8x+3y=30

7.5x+7y=52

5x+2y=22

3.7x+2y=52

7x+4y=62

8.5x+5y=65

7x+7y=203

4.4x+6y=54

9x+2y=87

9.8x+4y=56

x+4y=21

5.2x+y=7

2x+5y=19

10.5x+7y=41

5x+8y=44

1/11

.

7x+4y=42

11.7x+5y=54

3x+4y=38

16.9x+7y=135

4x+y=41

12.x+8y=15

4x+y=29

17.3x+8y=51

x+6y=27

13.3x+6y=24

9x+5y=46

18.9x+3y=99

4x+7y=95

14.9x+2y=62

4x+3y=36

19.9x+2y=38

3x+6y=18

15.9x+4y=46

2/11

.

20.5x+5y=45

7x+9y=69

25.7x+y=9

4x+6y=16

21.8x+2y=28

7x+8y=62

26.6x+6y=48

6x+3y=42

22.x+6y=14

3x+3y=27

27.8x+2y=16

7x+y=11

23.7x+4y=67

2x+8y=26

28.4x+9y=77

8x+6y=94

24.5x+4y=52

7x+6y=74

29.6x+8y=68

7x+6y=66

3/11

.

30.2x+2y=22

7x+2y=47

35.3x+y=10

7x-y=20

31.5x+3y=8

3x+5y=8

36.44x+10y=27

x+y=1

32.6x-7y=5

x+2y=4

37.8x-y=0

x+y=18

33.10x-8y=14

x+y=5

38.11x-y=12

11y-x=-12

34.4x+7y=3

x+y=0

39.5x+6y=27

4/11

.

2x+3y=12

44.10x-8y=0

3x-2y=2

40.7x-2y=4

x+2y=12

45.3x+y=10

5x-7y=8

41.(2x+y)-5y=2

2x-5y=0

46.3x-2y=1

x-y=3

42.7x-3y=3

3x+2y=21

47.x+3y=-5

3x-4y=-2

43.7x+2y=21

y-6x=1

48.y-3x=2

x-2y=6

5/11

.

54.x+8y=442

49.5x+3y=2

2x-y=3

5x+6y=480

50.9x-3y=12

2x+y=6

55.3x-2y=5

7x-4y=11

51.2x+3y=7

3x+2y=3

56.3x-5y=2

2x-y=3

52.3x+2y=18

x+y=7

57.4x-3y=18

2x-y=8

53.2x-5y=1

x+y=3

58.x-2y=5

x+3y=-5

6/11

.

59.3x+y=7

2x+3y=7

64.x+2=4

2(y-3)=6

60.3x-2y=7

2x-3y=3

65.3(y-2)=x-1

2(x-1)=5y-8

61.23x+17y=63

17x+23y=57

66.x+2y+2=0

7x-4y=-41

62.x-y=2

x+1=2(y-1)

67.x-3y+20=0

3x+7y-100=0

63.x-5y=0

3x+2y=17

68.2x+y=1

3x-2y=-9

7/11

.

2y+3(x-y)=11

69.3x-4y+11=0

3y-4x+53=0

xy

1

34

74.

3x-4y=2

70.4y=3x+4

5y=4x+3

xy4

75.

433

3(x-4)=4(y+2)

xy1

71.7x-3y+1=0

4x-5y=-17

1

76.

23

3x+2y=10

77.x312y

72.3x-y-3=0

4x+3y=17

2(x+1)-y=11

73.x-y=3

8/11

.

78.2xyy

20

3

2(2x+y)-5=7y

83.2x-3y=-5

3x+2y=12

79.6x+6y=48

6x+3y=42

84.3x-2(x+2y)=3

11x+4(x+2y)=45

80.(2x+y)-5y=2

2x-5y=0

85.x-2y=3

xy7

5210

3x12y1

81.

86.9x+2y=20

3x+4y=10

2x+y=2

82.xy4

11

xy

53

2

5

433

87.

3(x-4)=4(y+2)

0.5x-0.3y=0.2

9/11

.

88.11x-9y=12

-4x+3y=-5

xy1

93.

4

x+4y=4

89.3x+5y=6

6x+15y=16

xy9

2

94.

xy

6

32

90.3x-y-3=0

4x+3y=17

95.3x+5y=19

8x-3y=67

96.x1167x

91.x+y=500

0.7+0.9y=386

5

2x-1=3y+3

x0.6y12

5

97.x-2y=7

92.4x

y1

50.4y8

1-3x=2

10