Question

40道二元一次方程组计算题,只是计算题!急, 请帮我找一下

Answer 1

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.M/4+N/4=2
M/6+N/3=2
2.(X+3)/2+(Y+5)/3=7
(X+4)/3-(2Y-3)/5=2
3.(X+Y)/2+(X-Y)/3=1
4(X+Y)-5(X-Y)=2
4.2(3X-Y)=7
(2X-3Y)/5-(Y-3X)/3=1/2
5.(2X-1)/5+(3Y-2)/4=2
(3X+1)/5-(3Y+2+/4=0
5x+3y=8,
3x+5y=8
6x-7y=5,
x+2y=4
10x-8y=14,
x+y=5
4x+7y=3,
x+y=0
3x+y=10,
7x-y=20
4x+10y=27,
x+y=1
8x-y=0,
x+y=18
11x-y=12,
11y-x=-12
5x+6y=27
,2x+3y=12
7x-2y=4,
x+2y=12
(2x+y)-5y=2,
2x-5y=0
7x-3y=3,
3x+2y=21
7x+2y=21,
y-6x=1
10x-8y=0,
3x-2y=2
3x+y=10,
5x-7y=8