北师大版八年级数学下册解二元一次方程组练习题精选 66.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66
a=2b+108x+6y=5
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5a=7b+92x=7y-15
x+6y=108m+5b=14
{{
6y-8x=108-10m+6b=3
a=4b+4x-3y=-5
{{
6a=7b+184x-9y=9
6x-3y=1270.1x+0.9y=1
{{
4y+6x=1270.7x+0.6y=0.9
5a=8b+126x-5y=19
{{
5a=2b+37x=9y+11
6x+y=1593m-2b=27
{{
4y-5x=159-9m-5b=24
3a=6b-77x-2y=8
{{
8a=5b-73x-9y=2
3x-9y=1830.2x-0.2y=3.3
{{
9y+6x=1830.8x+0.3y=1.5
9a=2b+63x-2y=14
{{
8a=b-74x=3y-3
4x+4y=502m+7b=26
{{
8y+9x=50-4m-b=25
6a=8b+36x-y=0
{{
4a=3b+183x-9y=5
7x-5y=390.7x+0.3y=3.8
{{
2y-6x=390.1x-0.1y=0.7
9a=9b+1x-6y=2
{{
9a=2b-114x=4y-8
4x-6y=1348m+2b=15
{{
4y-5x=134-1m+6b=29
5a=2b+118x+y=-5
{{
2a=5b+166x-2y=-4
2x-7y=1650.2x-0.8y=0.1
{{
8y+6x=1650.4x-0.8y=0.4
5a=2b+18x-7y=19
{{
7a=2b+162x=2y+10
9x-5y=295m+7b=6
{{
9y-8x=29-5m-2b=11
7a=7b+124x+y=-9
{{
6a=8b+112x-6y=-1
2x+8y=1090.4x+0.8y=2.6
{{
y-9x=1090.7x-0.5y=0.6
6a=7b+27x+9y=3
{{
a=4b+18x=8y-17
8x+7y=-36m+4b=21
{{
6y+5x=-3-6m-2b=13
8a=b-162x-2y=4
{{
7a=7b-78x-2y=5
6x-8y=1240.4x-0.3y=4
{{
3y+6x=1240.5x-0.6y=2.7
a=3b+20x-6y=6
{{
6a=4b+58x=7y+10
x+y=1037m-8b=26
{{
3y+6x=103-6m+3b=11
a=6b-206x+y=-7
{{
4a=6b-48x+7y=-8
6x-7y=840.2x-0.8y=0.4
{{
4y-7x=840.8x-0.9y=3.7
a=6b+38x-9y=13
{{
4a=3b+89x=9y-7
8x+4y=1768m-9b=9
{{
3y-6x=176-2m-b=4
2a=2b-26x-9y=-8
{{
2a=6b-128x+4y=7
2x+5y=-70.1x+0.5y=0.6
{{
3y-6x=-70.9x+0.5y=1.6
7a=8b+62x+5y=16
{{
7a=9b-65x=y+1
3x+3y=2007m+9b=16
{{
6y-6x=200-9m-b=18
9a=9b+136x+8y=-6
{{
9a=b-186x+6y=6
5x+8y=1100.4x+0.1y=0.3
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4y-7x=1100.8x-0.6y=3.3