二元一次方程组专项练习题71.docx
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二元一次方程组专项练习题71
6a=8b-19x+3y=12
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2a=5b+28x=8y+19
6x-4y=-33m-b=3
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7y-4x=-3-2m-7b=6
7a=7b-126x+7y=5
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6a=2b-159x-7y=9
x-6y=1880.3x-0.8y=0.9
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3y-7x=1880.5x+0.6y=0.6
6a=9b+124x+7y=10
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7a=9b-17x=3y-12
4x-6y=1796m-b=9
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6y-5x=179-5m+b=20
5a=7b+42x+3y=-9
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2a=9b-92x+y=-10
2x+3y=1820.7x+0.2y=3
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8y-9x=1820.5x-0.7y=1.3
6a=7b+18x+6y=12
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6a=3b-33x=3y-1
8x+4y=493m+b=7
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y-2x=49-6m-5b=3
2a=4b+48x-7y=-3
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3a=7b+188x+5y=4
5x+7y=1320.1x+0.7y=1.1
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8y+8x=1320.8x-0.3y=1.8
7a=6b+88x-8y=13
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5a=4b-162x=9y-1
x+2y=1995m+7b=5
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2y+6x=199-6m-2b=23
a=b+15x+2y=-8
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7a=7b-122x-6y=0
9x+3y=810.6x-0.6y=0.4
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5y-9x=810.3x+0.1y=2.2
3a=2b-142x+9y=7
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a=8b-11x=5y+18
9x+4y=534m-b=25
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9y+7x=53-1m+2b=17
8a=6b-68x-5y=-5
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7a=8b+38x+7y=-3
6x-6y=1210.5x+0.7y=0.6
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6y-4x=1210.9x-0.5y=1.5
6a=2b+62x-5y=11
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7a=2b-162x=7y-11
5x-7y=1977m-2b=1
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2y-3x=197-3m-6b=17
5a=9b+59x-y=-5
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a=5b-43x-y=-6
6x+3y=1990.4x+0.3y=0.3
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2y+2x=1990.7x-0.5y=1.2
3a=5b+28x-3y=12
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2a=5b+179x=5y+15
8x+4y=51m+9b=6
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2y+x=51-3m-9b=2
2a=9b-166x-6y=-10
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3a=7b-39x+y=3
9x+y=970.6x+0.2y=0.4
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5y-7x=970.8x+0.9y=0.9
7a=5b-185x-5y=5
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5a=7b-145x=y+15
7x+5y=195m-3b=12
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2y+2x=19-7m-2b=12
2a=5b+16x+8y=-7
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3a=7b+94x-6y=-2
2x-4y=300.7x+0.7y=4
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3y-3x=300.1x+0.4y=3.9
6a=2b-17x-5y=8
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3a=5b+18x=5y-6
x+y=814m-8b=1
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5y+4x=81-4m+7b=30
2a=4b+54x-3y=8
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9a=2b-117x+6y=-4
9x-3y=1910.4x-0.7y=1.4
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3y-6x=1910.4x-0.8y=0.4
9a=4b+79x-8y=7
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6a=4b+7x=5y-11
6x+7y=792m-3b=1
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8y-2x=79-9m+2b=27
3a=5b-107x-y=7
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a=5b-92x-7y=4
3x+3y=1270.6x-0.9y=1.5
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8y+x=1270.2x-0.1y=4
3a=5b+174x-8y=2
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4a=3b+66x=8y+13
3x+7y=1802m+4b=15
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2y-8x=180-9m+5b=26
4a=8b+145x+y=-9
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7a=5b-20x-5y=-6
5x+9y=-10.5x+0.1y=2.8
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4y+5x=-10.4x-0.7y=2
9a=3b+3x+9y=15
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9a=2b-24x=8y-6
9x+9y=20m-6b=29
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9y-9x=20-1m-b=25
8a=4b-27x+2y=5
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6a=5b+78x-5y=1
4x+5y=820.8x-0.8y=0.3
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9y-7x=820.4x+0.5y=3.7
7a=2b-96x-y=18
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6a=8b+207x=9y-11
7x+4y=198m+2b=29
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4y-2x=19-5m-2b=10
5a=3b+7x+5y=8
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7a=5b-3x-9y=8
5x+8y=720.3x+0.1y=2
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8y+5x=720.3x-0.4y=1.3
3a=5b+207x+6y=5
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4a=7b+12x=4y+11
5x+6y=1574m-5b=24
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y-9x=157-8m+8b=22
3a=5b+203x-2y=3
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9a=7b-156x-y=-9
5x+y=1330.8x+0.5y=3.4
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4y+8x=1330.7x+0.3y=3.3
2a=7b-132x+y=14
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9a=2b+44x=5y-17
5x+9y=1063m+4b=27
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5y+6x=106-1m+7b=4
2a=3b+159x-4y=8
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3a=2b+192x+5y=-3
x-3y=1060.7x-0.9y=1.3
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2y-2x=1060.2x-0.8y=0.5