初二数学二元一次方程组专项练习题 95Word格式文档下载.docx
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2a=9b-66x-4y=-4
5a=3b+42x+7y=7
6x-9y=1050.6x-0.5y=1.7
9y+2x=1050.4x-0.1y=3.8
a=6b-76x-y=18
7a=5b+145x=5y+7
x-5y=656m+2b=13
5y+7x=65-3m-b=23
6a=7b-132x+4y=-2
8a=5b-19x-8y=-2
8x+2y=1690.3x+0.3y=1
8y-9x=1690.2x-0.2y=2.3
4a=7b-26x-6y=13
4a=5b+187x=3y-13
x+3y=308m+8b=6
y-5x=30-2m-7b=28
3a=6b+95x-5y=9
5a=4b-184x+3y=-2
x-4y=990.4x-0.2y=0.5
9y-4x=990.5x+0.4y=1.3
2a=5b+69x+5y=16
5a=b-108x=5y-12
9x-7y=1354m+b=12
7y-x=135-5m+7b=15
5a=9b+6x+9y=-6
5a=4b-62x+5y=-10
8x-9y=1550.6x+0.8y=3.3
9y-5x=1550.3x-0.5y=3.3
2a=3b+29x+5y=15
a=9b-186x=7y+19
3x+6y=666m-5b=14
5y-2x=66-2m+8b=28
a=3b+166x-6y=-2
5a=7b+18x-2y=5
2x+9y=1490.1x+0.4y=1.1
7y-4x=1490.2x-0.1y=0.1
5a=3b+85x+2y=9
7a=7b+205x=6y+9
3x-5y=1523m+6b=15
4y-4x=152-10m-5b=27
9a=8b-45x-4y=2
3a=3b+9x-9y=-8
3x-4y=310.3x+0.7y=3.2
9y+5x=310.8x-0.9y=2.6
8a=b-174x+6y=12
2a=b+46x=3y-6
9x+9y=1697m+8b=7
2y-6x=169-8m+3b=17
5a=5b+185x-3y=4
a=7b-186x+5y=6
9x-2y=1510.5x+0.8y=1.7
9y-5x=1510.2x-0.8y=2
3a=9b+134x-8y=15
3a=9b+194x=2y+12
5x+6y=142m+6b=0
7y-7x=14-10m+3b=19
9a=3b-155x+6y=-6
8a=3b+168x+9y=7
3x+9y=1990.7x+0.7y=0.1
3y-3x=1990.1x+0.3y=2.1
2a=3b-204x-8y=19
2a=6b+49x=8y+14
4x-4y=553m-3b=19
8y+7x=55-9m+8b=7
5a=3b-39x+6y=-5
3a=6b+194x-2y=-7
7x-4y=1250.6x+0.6y=2.6
y+x=1250.8x-0.7y=0.4