北师大版八年级数学下册解二元一次方程组练习题精选 69Word文件下载.docx
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2a=6b-33x-y=10
4a=2b+54x-6y=5
9x+7y=1700.3x-0.7y=0.9
9y+6x=1700.8x+0.1y=3.8
8a=8b+196x+5y=2
2a=3b-158x=2y+7
4x+8y=598m-3b=4
8y-6x=59-6m+5b=16
a=4b+57x-8y=8
5a=5b+59x-9y=-2
8x-8y=600.1x+0.5y=3.3
2y+x=600.7x+0.8y=2.7
8a=2b-82x+6y=18
2a=6b+57x=9y-4
5x-3y=834m+7b=12
4y+8x=83-7m+2b=20
3a=4b-203x+9y=-2
3a=8b-167x-3y=-8
2x+3y=510.2x+0.4y=0.1
4y-x=510.3x+0.5y=2.9
8a=6b-6x-3y=8
8a=9b+56x=5y-20
6x-y=135m+5b=17
3y+2x=135-1m-2b=24
8a=9b-68x+5y=1
6a=2b-18x-8y=5
2x+y=1430.2x+0.9y=1.6
5y+5x=1430.4x+0.8y=0.1
3a=8b+14x+4y=16
a=b+104x=4y-4
3x-4y=1548m+6b=18
3y-8x=154-10m-3b=13
8a=3b-93x-6y=6
4a=9b-124x+5y=9
3x-2y=1630.7x-0.6y=3.6
3y-5x=1630.1x-0.6y=1.7
8a=8b+108x+4y=5
9a=9b+17x=2y+9
7x-6y=278m+3b=10
2y+9x=27-1m+2b=21
8a=5b+197x+7y=-8
4a=3b+59x+8y=4
7x-7y=1900.7x-0.8y=3.2
y+x=1900.3x-0.2y=4
5a=7b-16x+5y=20
a=8b+7x=9y+2
8x+4y=182m-9b=17
4y-3x=182-8m-2b=21
8a=6b+8x-5y=-2
4a=4b-5x+5y=0
7x+4y=1810.9x-0.8y=2.8
4y-5x=1810.9x+0.3y=0.8
6a=8b-62x-9y=7
7a=2b+178x=8y+15
x+3y=338m+6b=30
2y-8x=33-10m+6b=1
7a=9b+64x+6y=-4
4a=b-196x+4y=1
5x-4y=00.7x+0.4y=3.4
8y+3x=00.5x-0.4y=0.8
8a=2b+205x+9y=18
a=4b+95x=6y-14
7x-9y=170m-2b=26
2y+7x=170-6m+6b=22
2a=5b-106x+8y=-9
8a=8b-107x-9y=-2
7x-7y=680.9x+0.7y=1.8
6y-6x=680.3x-0.3y=3.1