七年级下册二元一次方程纯计算题
1. 2x+9y=81
3x+y=34 2.、9x+4y=35
i
8x+3y=30
100题
3. 7x+2y=52
7x+4y=62
4.耳4x+6y=54
9x+2y=87 2x+y=7 6.
2x+5y=19
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
lr
5x+8y=44 11. 7x+5y=54
3x+4y=38
12. x+8y=15
4x+y=29
13. 3x+6y=24 =62
9x+5y=46 4x+3y=36 15. 9x+4y=46
7x+4y=42
16. 9x+7y=135 3x+8y=51
4x+y=41 x+6y=27 18 9x+3y=99
*
4x+7y=95
9x+2y=38 5x+5y=45 3x+6y=18 7x+9y=69 2f. 8x+2y=28
7x+8y=62
21.， 8x+2y=28
7x+8y=62 x+6y=14
3x+3y=27
23. 7x+4y=67
2x+8y=26
24. * 5x+4y=52
7x+6y=74 7x+y=9
4x+6y=16
26. 6x+6y=48
6x+3y=42
28.」4x+9y=77
29. 6x+8y=68
27. “ 8x+2y=16
b 7x+y=11
8x+6y=94
7x+6y=66
3O.fx+2y=22 7x+2y=47
5x+3y=8 32. 3x+5y=8
6x-7y=5
x+2y=4
33.」10x-8y=14
34. 4x+7y=3
x+y=5
k*
x+y=0
3x+y=10 7x-y=20
36. 44x+10y=27 x+y=1
37* 8x-y=0
38? x+y=18
11x-y=12
11y-x=-12
39. 5x+6y=27 40. I 7x-2y=4 41. (2x+y)-5y=2
2x+3y=12 x+2y=12
2x-5y=0
42「7x-3y=3
I
3x+2y=21 43. £ 7x+2y=21
*
y-6x=1
44. 10x-8y=0
3x-2y=2
45. 3x+y=10 3x-2y=1 47. y-3x=2
5x-7y=8 x-y=3 x-2y=6
48. < 9x-3y=12
2x+y=6 49. {+3y=-5
3x-4y=-2
51 1 3x+2y=18
52? 2x-5y=1
53. x+8y=42
56.
‘23x+17y =63 58.丿
' J7x + 23y = 57
x+y=7
x+y=3
3x-4y=-20
54 “ 3x-5y=2 2x-y=3
55、
4x ”5
#x +6y =14
59.
5
[x +1 =5(y 十2)
0(2x —5) —4(3y +4) =5
”3x+ 2y = 47 3x - 2y = 19
67、：x + y =8
、5x — 2(x + y) =—1
严—16y =。
60 .
12x +25y =1034
63
\+y =4 2x - y - -1
57」3—6
2x +3y =17
‘3x_2y = -1 2x + 3y =8
5
x
2
厂
8
3
x
_
y
=
7 x
61.
X
L.2
5
卜
62. * 2x+9y=81
3x+y=34
70 5x+5y=65
7x+7y=203
x 2 = 4
64 2(y-3) = 6
66., 5x+7y=52
5x+2y=22
68.* 4x+6y=54
9x+2y=87
7[9x+3y=99
18x+23y=2303
75(18x+23y=2303
卜
44x+90y=7796
76.67x+54y=8546
71x-y=5680
67( 2x+y=7 2x+5y=19
72fx+8y=51 x+6y=27 77.42x-95y=-1410
21x-y=1575
68|X+2y=21
3x+5y=56
71fx+4y=56 x+4y=21
78.47x-40y=853
34x-y=2006
82$5x-92y=-2518
27x-y=486
79{19x-32y=-1786
75x+y=4950
74,66x+17y=3967
25x+y=1200
80- 97x+24y=7202 I
58x-y=2900 83.79x+40y=2419
56x-y=1176
81(42x+85y=636
2
8480x-87y=2156
63x-y=1638
