初中数学解二元一次方程组专项练习题 45文档格式.docx
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8a=3b+168x+7y=7
7a=b+43x+4y=2
9x+3y=1020.8x+0.4y=0.9
5y-5x=1020.3x-0.4y=3
4a=8b-37x+4y=8
8a=2b+186x=2y-13
8x-8y=1204m-9b=28
7y-5x=120-9m-7b=3
8a=7b+158x-y=-4
a=5b+62x+3y=-6
9x+4y=670.2x+0.8y=1.1
6y+7x=670.3x+0.6y=3.7
9a=9b-77x+3y=13
4a=2b+109x=2y-10
5x-y=98m+3b=25
9y-6x=9-8m-b=17
a=2b+37x+6y=1
2a=5b+145x-3y=-4
2x-5y=920.4x-0.1y=3.2
2y+4x=920.7x-0.4y=0.4
6a=8b+195x-y=20
a=5b-67x=3y-15
8x+y=1519m-3b=0
6y-x=151-7m+6b=11
4a=2b-123x+7y=3
4a=2b-192x+8y=3
7x+4y=1700.1x-0.1y=3
3y-5x=1700.9x-0.2y=1.7
a=3b+156x+y=12
4a=5b-2x=y+20
x-5y=1713m+5b=26
3y-7x=171-1m-6b=23
4a=4b-109x+y=-3
a=b-166x+9y=2
6x-4y=140.6x-0.3y=1.1
5y-2x=140.2x-0.8y=3.5
5a=6b+59x+5y=3
7a=4b+55x=5y-7
5x-4y=355m+8b=2
y+2x=35-1m-2b=21
6a=6b-89x+y=-7
8a=b-89x+2y=2
7x-6y=-70.8x-0.7y=3.2
7y-6x=-70.5x+0.5y=1.9
a=3b+194x-6y=16
a=8b+18x=9y+3
x+2y=1603m+5b=28
6y+2x=160-3m+9b=23
a=b-4x-5y=-8
2a=4b-85x-8y=4
5x-8y=60.9x+0.2y=2
9y+9x=60.4x-0.2y=3.4
2a=6b-103x-4y=15
3a=3b+166x=y-20
6x-y=1722m-b=30
7y-3x=172-2m+8b=4
8a=9b-14x+7y=-4
4a=8b+174x+9y=3
7x+6y=1760.8x-0.3y=1.4
6y+2x=1760.4x+0.9y=0.3
7a=8b+12x-5y=7
7a=5b+24x=5y-16
6x-7y=98m-3b=2
4y+5x=98-8m+b=23
4a=4b-18x-4y=2
9a=6b+143x-5y=2
4x-2y=1680.4x+0.9y=1.9
6y+4x=1680.1x-0.7y=1