北师大版八年级数学下册解二元一次方程组练习题精选 17.docx
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北师大版八年级数学下册解二元一次方程组练习题精选17
2a=9b+142x-3y=14
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4a=4b+149x=5y+10
6x+6y=1138m+b=28
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y-2x=113-4m+8b=24
6a=3b-115x-8y=-8
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5a=3b-89x+5y=3
2x+7y=520.1x+0.1y=2.5
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7y-8x=520.5x-0.6y=2.1
8a=6b-28x+9y=10
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3a=6b-205x=8y-14
7x-9y=1039m+3b=7
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3y+x=103-4m+b=19
7a=9b-124x+6y=4
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3a=6b+95x-9y=10
8x-2y=230.2x-0.5y=3.2
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5y+4x=230.1x-0.3y=3.2
2a=7b-85x+3y=12
{{
3a=b-109x=9y+8
3x-5y=1965m+4b=13
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8y+9x=196-1m+5b=0
8a=7b-159x+7y=-6
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6a=6b-48x-8y=-3
6x-4y=950.2x-0.4y=1.1
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6y+2x=950.4x+0.4y=2.9
4a=6b-56x-y=12
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4a=8b-22x=6y+6
5x-y=392m+9b=0
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5y-4x=39-3m-2b=9
a=9b-92x-3y=-4
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2a=b+38x-9y=0
6x-5y=1100.5x+0.2y=4
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8y-5x=1100.8x+0.2y=2.7
9a=4b+23x-8y=17
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7a=b-85x=3y+14
2x+y=-10m+6b=28
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y-5x=-10-2m-5b=3
2a=5b-26x-y=-4
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3a=4b-28x-7y=-9
9x+6y=360.4x-0.2y=2.3
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2y-2x=360.7x-0.8y=4
9a=6b+86x-8y=4
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9a=4b+102x=9y-8
8x+4y=1888m+8b=23
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6y+7x=188-5m+7b=0
2a=9b+134x-y=-10
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9a=4b-159x-y=-8
6x+7y=420.7x-0.7y=3.8
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6y-5x=420.9x+0.4y=0.9
a=b+34x+6y=8
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5a=7b+196x=8y+3
8x-3y=1306m-7b=16
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2y+x=130-5m-7b=1
4a=7b-12x+7y=5
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6a=b-178x-9y=4
6x-2y=700.3x-0.5y=2.7
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5y-7x=700.4x+0.5y=3.5
2a=3b+167x-7y=20
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3a=9b+154x=5y+3
5x-8y=1273m+5b=0
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8y+3x=127-9m-6b=25
8a=3b-148x-6y=-9
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a=9b-179x+8y=10
3x+6y=370.3x+0.9y=2.1
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4y-9x=370.3x-0.2y=0.2
2a=4b+146x-4y=14
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7a=8b+126x=9y-10
5x-6y=1448m-5b=6
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2y+3x=144-1m-2b=3
8a=2b+183x+2y=7
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9a=3b+46x+9y=-6
7x+y=1660.2x+0.1y=2.7
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9y+9x=1660.6x+0.8y=0.2