初中数学解二元一次方程组专项练习题 75Word格式.docx
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2a=7b-168x+3y=-8
3a=2b-5x-6y=1
4x+y=600.6x+0.1y=3.7
5y+8x=600.3x-0.9y=3.8
3a=5b+137x-2y=19
6a=8b-83x=9y+4
2x-8y=36m-9b=7
6y+x=36-1m-4b=27
3a=b+118x-6y=5
4a=b-66x-4y=2
9x-5y=1700.5x+0.5y=3
4y-6x=1700.3x-0.8y=1.3
4a=5b+99x-y=3
a=6b+43x=5y-12
5x+5y=423m+b=1
5y-6x=42-9m+4b=21
3a=8b-47x-2y=2
5a=5b+88x+3y=7
4x-8y=1650.7x+0.8y=3.6
y+x=1650.8x-0.2y=2.6
9a=2b+186x-7y=9
8a=4b-158x=2y+19
4x-7y=536m+8b=28
8y-4x=53-10m-7b=17
3a=8b-137x+4y=-7
a=2b+74x+6y=1
2x+9y=120.5x-0.3y=1.4
8y-2x=120.4x+0.7y=0.5
7a=9b-6x+9y=19
2a=4b-52x=8y+9
x-3y=138m+8b=12
3y-4x=138-6m+8b=7
3a=9b+11x-6y=-4
9a=5b+14x+y=6
9x-y=470.4x-0.5y=0.7
5y+2x=470.8x+0.2y=3.4
5a=8b-28x+7y=18
2a=6b-157x=2y+5
6x+8y=153m+8b=5
7y+3x=153-8m-3b=7
6a=b-35x-7y=5
a=8b+20x+7y=0
9x+9y=700.1x-0.5y=3.6
6y-3x=700.2x+0.4y=3.5
4a=4b+139x+4y=20
a=7b-103x=7y-4
2x+3y=1448m-9b=14
6y-2x=144-1m-8b=2
2a=9b-165x-y=10
3a=b+64x-y=-7
7x-y=1780.4x-0.4y=2.4
3y+7x=1780.5x+0.8y=1.7
2a=9b-4x-2y=12
6a=8b+134x=6y-12
x-3y=1414m+6b=23
6y-5x=141-3m-6b=26
3a=8b+114x+7y=-2
5a=7b-96x+y=3
7x+4y=1070.2x-0.1y=0.3
6y+5x=1070.2x-0.9y=3.2
2a=5b-135x+2y=12
2a=4b-16x=y+18
2x-8y=-75m+3b=19
6y-9x=-7-9m-2b=14
8a=9b+2x+5y=1
9a=8b-152x+6y=-2
8x+9y=1900.2x-0.8y=3.9
6y-6x=1900.8x-0.5y=1.7