初二数学二元一次方程组专项练习题 104文档格式.docx
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5a=b-76x-8y=-1
9a=b+136x+3y=-4
9x+8y=1500.9x+0.4y=0.4
5y+x=1500.8x-0.9y=0.1
2a=b+122x-8y=10
3a=b-189x=2y+15
7x-y=623m-4b=22
8y-6x=62-3m+9b=23
3a=9b+22x-2y=5
4a=b-39x+y=9
5x+8y=730.4x+0.8y=2.5
3y+3x=730.5x-0.3y=2.8
8a=5b-14x-5y=17
6a=2b+126x=6y+17
8x-y=1m-5b=11
3y-8x=1-5m-6b=19
2a=8b+118x-9y=7
2a=6b+146x+4y=-9
9x-8y=1340.8x+0.5y=1.5
y+3x=1340.3x+0.1y=3.7
3a=b+129x-6y=1
5a=9b-173x=7y+8
3x+9y=1307m+b=24
6y-x=130-3m+2b=23
7a=8b+42x-7y=-1
8a=2b+139x-5y=7
4x-8y=1310.8x+0.6y=1.3
5y+8x=1310.2x-0.2y=0.8
3a=5b-203x+6y=10
4a=6b-177x=4y-13
6x+2y=873m+6b=27
9y-x=87-7m-4b=21
9a=4b+57x+6y=10
5a=8b-35x-9y=2
7x-y=1670.7x+0.2y=0.7
7y+6x=1670.1x-0.3y=3.6
4a=9b+25x+8y=18
4a=5b-10x=y+12
9x-y=1153m-9b=5
6y-x=115-4m+b=30
8a=9b-192x-y=-6
7a=7b+167x+4y=-7
x-3y=440.4x-0.1y=1.9
5y+3x=440.4x-0.7y=2.3
3a=9b+92x-y=19
9a=b-13x=6y-16
2x-2y=2008m+5b=1
2y-8x=200-8m+9b=13
a=5b-35x+4y=6
3a=9b+117x+5y=-4
7x+8y=300.9x-0.3y=3.1
8y+x=300.4x-0.1y=1.4
a=6b-152x+8y=13
8a=7b-52x=6y-5
5x+3y=945m-b=30
y+5x=94-8m+b=17
2a=5b+139x-6y=4
6a=7b-12x+9y=-3
7x+5y=1220.9x+0.6y=3.8
6y-8x=1220.7x-0.9y=2.4
3a=7b+196x-7y=4
8a=4b+4x=7y+17
6x-7y=958m+2b=14
2y-4x=95-2m-2b=5
8a=4b-137x-9y=-2
9a=2b-128x+9y=-9
3x-3y=980.1x+0.4y=0.4
2y+2x=980.4x-0.5y=1.7