二元一次方程组专项练习题57.docx
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二元一次方程组专项练习题57
a=9b-33x+7y=12
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6a=b-159x=7y+3
4x-9y=14m+8b=27
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9y-4x=1-7m+2b=6
9a=8b+57x-6y=1
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7a=9b+184x+7y=-4
2x-7y=680.9x+0.4y=0.2
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3y-7x=680.9x-0.7y=2.6
7a=4b-4x-3y=10
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5a=9b+13x=4y-11
8x-3y=1472m+4b=14
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6y-9x=147-5m-5b=21
7a=7b+133x-4y=5
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a=9b+18x+8y=9
8x-2y=750.8x-0.3y=0.4
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2y+4x=750.1x-0.4y=2.5
9a=3b+87x+3y=5
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2a=2b+64x=8y-18
7x-7y=1683m+4b=5
{{
9y-2x=168-10m-2b=11
8a=2b-143x-3y=0
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4a=7b+53x+7y=0
5x-8y=1060.2x+0.9y=3
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2y+x=1060.4x-0.9y=3.4
5a=5b-86x+7y=17
{{
8a=b-92x=6y-19
4x+8y=23m+b=29
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7y+4x=23-6m+6b=24
a=9b+197x+7y=10
{{
6a=8b-124x+3y=3
6x+9y=970.1x-0.6y=2.1
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9y-3x=970.7x-0.5y=0.4
2a=9b+186x-y=5
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a=b+109x=3y-9
9x-6y=262m-5b=4
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2y-5x=26-4m+9b=23
2a=9b+104x+7y=4
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6a=3b-44x+9y=-7
x-2y=1500.7x-0.1y=3.3
{{
4y-3x=1500.5x-0.3y=3
9a=9b-145x-3y=18
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9a=5b-112x=2y+13
7x-9y=746m-8b=10
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8y-6x=74-1m+2b=3
6a=7b-88x-5y=7
{{
6a=5b-43x+5y=9
3x-2y=180.2x-0.9y=2.4
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9y-6x=180.4x-0.7y=1.3
7a=9b+149x-8y=11
{{
a=5b+133x=4y-11
3x+5y=897m-b=27
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3y+3x=89-2m+5b=7
a=5b+19x-6y=-2
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a=7b-137x-9y=-5
8x+9y=170.7x-0.1y=1.5
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2y+x=170.4x+0.7y=2.7
7a=6b+129x-y=2
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9a=5b-93x=2y+6
x-6y=136m-3b=7
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2y+5x=13-6m-b=3
5a=5b+156x+4y=10
{{
2a=8b+158x-4y=7
4x+9y=740.3x-0.8y=3.3
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5y+5x=740.8x-0.9y=2.2
5a=b+124x-3y=11
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3a=b-147x=5y-17
6x-9y=1184m-b=8
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4y-2x=118-6m+9b=13
8a=6b+145x-9y=-5
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6a=b-177x+y=6
9x+4y=230.2x-0.1y=3.5
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4y-9x=230.8x+0.7y=2.8
3a=b+14x-5y=9
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4a=4b-163x=y+3
9x-y=804m+4b=11
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2y+4x=80-9m+5b=2
7a=8b+79x-5y=-4
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8a=3b-85x+8y=10
5x-y=1500.5x-0.7y=2.4
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8y-4x=1500.6x+0.1y=0.8
7a=2b-65x+6y=12
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8a=6b+76x=9y-3
6x-7y=866m-5b=27
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9y+3x=86-10m-3b=21
2a=7b-82x-4y=-4
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3a=5b-12x-y=-3
7x-6y=1150.8x+0.9y=0.2
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4y-3x=1150.8x+0.6y=3.8
6a=7b-137x+3y=11
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7a=6b+149x=8y-3
3x+6y=943m-6b=22
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8y+9x=94-10m+5b=17
5a=b+26x+4y=-9
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3a=2b-106x-9y=-4
7x-6y=1870.9x-0.5y=1
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3y+5x=1870.9x-0.7y=2
5a=9b-128x-7y=15
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3a=b-17x=y+2
3x+7y=-46m-6b=26
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6y+8x=-4-5m+8b=24
7a=b+122x+3y=2
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2a=7b+83x+7y=1
8x-4y=1630.1x-0.6y=1.2
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9y+7x=1630.8x+0.2y=1.3
4a=6b-154x-2y=16
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3a=2b+133x=8y+11
8x-y=125m+9b=23
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2y-x=12-5m-3b=26
7a=2b+59x-8y=-3
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4a=3b+155x-3y=9
2x+8y=1470.7x+0.2y=2.7
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y-4x=1470.3x-0.4y=3.9
3a=7b-204x+6y=20
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8a=3b+4x=4y-12
3x+3y=482m+8b=24
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7y-2x=48-5m+b=28
5a=8b-7x-5y=5
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a=5b+127x+2y=-3
2x+y=350.5x+0.7y=2.7
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9y+4x=350.9x-0.2y=0.5