1、人教版七年级数学下册二元一次方程组练习题211 x2y=-3 x2y=7 9x4y=8 3x y=-1 2x5y=-3 3x2y=7 3x3y=-4 3x2y=8 6x7y=7 4x3y=-7 5x4y=-5 5x3y=1 4x3y=6 6x8y=-3 7x3y=-27 3x5y=1 x5y=4 3x3y=0 5x2y=-4 7x9y=-6 7x2y=2 3x5y=-2 x2y=-2 x4y=1 2x4y=-2 2x7y=-2 9x5y=11 4x3y=-2 2x2y=-3 4x5y=-7 x2y=9 7x2y=-6 7x y=6 2x5y=-1 2x4y=3 3x3y=-8 5x5y=-7
2、7x8y=5 x5y=10 3x2y=-1 5x y=1 5x4y=4 x4y=1 9x8y=-5 7x y=12 4x3y=-1 3x y=-5 5x3y=8 x5y=9 4x5y=3 8x4y=6 4x3y=-9 3x3y=-3 2x5y=5 4x2y=-3 9x y=2 x y=20 4x5y=4 2x4y=6 2x y=2 2x y=8 4x y=9 4x7y=24 x y=6 4x4y=-8 3x2y=-5 5x5y=-8 8x5y=1 7x2y=-18 5x2y=4 3x2y=-9 5x y=5 5x5y=-2 8x6y=3 6x y=-21 2x4y=8 4x3y=5 3x4y=
3、7 3x4y=-9 2x6y=5 7x4y=30 3x4y=3 3x y=-4 x4y=-4 3x y=8 8x2y=8 9x5y=12 2x2y=-5 4x y=7 4x3y=1 4x5y=-4 6x8y=-8 x2y=-5 3x4y=8 5x y=-2 3x y=-7 2x y=9 3x8y=-6 8x y=9 2x4y=-2 3x3y=-5 x5y=2 5x3y=2 x4y=8 2x9y=22 4x3y=-2 4x2y=-6 4x3y=8 5x3y=-1 4x8y=5 3x y=-23 5x2y=5 5x5y=-7 3x4y=-7 3x4y=7 2x3y=-5 8x5y=27 x5y=-
4、8 2x4y=-9 x5y=6 3x2y=3 3x7y=-1 6x3y=-9 5x3y=-7 5x3y=4 3x2y=7 4x y=-8 x2y=7 7x4y=24 5x3y=-7 3x4y=5 3x3y=-8 x5y=9 x9y=-5 4x6y=27 3x3y=-1 x3y=-9 4x2y=-5 4x2y=3 x6y=4 2x y=6 4x4y=8 3x4y=8 4x y=-7 4x y=5 2x8y=-2 6x6y=30 5x2y=-9 x3y=-4 3x4y=3 5x y=-6 8x5y=-9 6x2y=-27 2x4y=-4 5x5y=7 x y=9 3x5y=-3 3x5y=1 3x
5、 y=6 5x y=8 3x2y=-2 x5y=-6 3x5y=7 6x8y=8 8x y=-30 3x2y=4 x3y=-2 4x3y=-1 4x y=6 6x7y=4 x2y=-9 2x2y=9 4x5y=9 3x2y=-4 2x3y=-2 4x8y=8 9x9y=10 x4y=-8 3x4y=-2 4x4y=5 x y=-8 8x y=6 9x y=25 5x5y=5 5x3y=4 4x5y=1 2x y=6 x9y=-3 6x y=-16 x y=1 x3y=3 5x5y=-3 3x2y=9 9x6y=-9 4x2y=16 5x y=-5 5x3y=2 3x4y=0 4x5y=-2 4
6、x7y=0 6x9y=-21 2x4y=9 4x2y=-1 5x y=-6 3x2y=8 8x5y=-6 4x7y=16 3x2y=-6 2x y=-4 5x5y=-7 5x2y=-3 x y=9 3x3y=4 3x4y=-3 4x3y=7 x3y=-1 4x2y=-2 3x3y=7 9x6y=-23 5x4y=-1 4x4y=-3 4x4y=1 x4y=5 x8y=6 4x y=-30 4x y=2 2x4y=-6 4x y=-7 4x5y=-4 8x9y=-8 7x y=10 2x5y=-2 2x2y=-1 5x2y=8 x2y=3 4x9y=2 x7y=9 x3y=5 4x3y=9 5x
7、4y=-9 x y=9 7x6y=5 8x6y=-16 x2y=4 5x3y=-8 2x y=6 4x3y=8 x9y=5 7x4y=30 x3y=7 3x3y=-5 4x2y=0 2x5y=1 9x8y=-5 2x2y=25 4x3y=7 5x5y=-6 3x3y=8 4x4y=-7 7x2y=4 2x9y=-24 3x y=3 x3y=-4 3x3y=0 4x5y=-5 3x7y=1 9x2y=-22 x2y=-4 x y=-9 3x5y=3 2x5y=0 3x6y=0 4x6y=15 4x4y=-8 2x2y=-6 4x5y=0 x5y=8 5x7y=5 3x2y=10 5x y=8 5
8、x y=-1 5x4y=-3 3x3y=7 x4y=8 7x y=-14 5x2y=-9 2x4y=-2 3x2y=5 x y=0 9x4y=-7 7x9y=-25 5x y=-7 2x y=1 x3y=1 3x5y=-7 4x9y=9 9x2y=26 2x3y=8 5x3y=2 2x2y=0 x3y=7 9x8y=-5 7x2y=-2 5x4y=8 x3y=-7 4x3y=1 5x5y=3 2x2y=-1 2x8y=-29 x y=-6 4x4y=5 2x4y=2 3x y=-7 5x8y=3 x2y=-27 5x2y=-1 3x3y=-9 x4y=-7 5x4y=-8 5x2y=-4 9x
9、2y=20 4x y=1 4x4y=1 x4y=1 3x4y=8 6x6y=7 9x4y=25 5x4y=9 4x4y=9 2x4y=-2 2x5y=6 4x3y=-1 6x7y=17 4x3y=0 2x4y=-9 3x5y=4 x2y=-2 5x4y=-5 x9y=13 2x4y=-3 2x5y=-8 x5y=6 5x4y=7 x4y=-9 9x8y=-24 x5y=-3 2x3y=0 2x y=7 x4y=-4 3x2y=5 4x2y=30 3x4y=6 3x3y=8 x2y=0 2x3y=-6 4x3y=7 9x4y=-13 x4y=6 4x2y=-1 5x2y=-9 2x2y=1 5x
10、9y=4 5x8y=-21 5x4y=-3 5x3y=9 3x2y=6 2x4y=7 7x y=-2 7x9y=5 4x3y=0 3x4y=8 3x4y=3 5x2y=7 x2y=1 4x5y=2 5x4y=-1 2x4y=-4 x3y=-6 2x2y=5 x3y=-6 x2y=-20 4x3y=7 5x5y=-6 2x y=-2 2x y=-2 8x7y=8 x2y=7 2x5y=6 3x y=5 5x3y=3 5x2y=7 5x9y=-9 3x2y=23 2x2y=-9 x3y=5 3x y=4 4x4y=8 2x4y=5 4x7y=-25 x3y=7 3x4y=-8 5x5y=-8 2x
11、5y=0 x3y=-5 7x2y=-10 3x y=0 4x3y=-1 4x4y=-2 5x y=3 8x y=6 5x y=29 4x3y=5 3x3y=-2 4x4y=5 x3y=7 x6y=-8 3x3y=30 5x3y=-7 2x2y=-7 x3y=6 x3y=-5 4x4y=7 9x2y=-23 4x5y=-3 2x2y=0 x2y=-5 2x3y=6 8x5y=8 9x4y=11 3x2y=4 4x y=2 x4y=-6 x5y=-3 3x8y=4 9x2y=-16 5x3y=-9 2x3y=-3 5x5y=5 5x5y=-3 6x3y=3 6x4y=4 5x3y=-5 x2y=-4 4x5y=4 3x3y=3 4x8y=8 8x4y=-22 4x5y=3 4x2y=3 2x y=0 5x2y=-1 x7y=5 4x7y=24 4x3y=4 x y=5 x2y=-7 3x4y=-1 9x4y=8 4x y=20 3x y=1 2x3y=1 5x4y=-6 2x3y=8 7x9y=-1 3x3y=-12 3x4y=9 4x2y=-8 x3y=3 2x2y=8 5x8y=-3 3x y=-20 5x y=-6 3x y=5 3x y=-2 3x2y=-5 5x9y=1 2x2y=13 3x y=3 x y=9 3x y=5
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