1、人教版七年级数学下册二元一次方程组练习题48 2x2y=0 5x2y=-9 x4y=16 5x4y=-7 x3y=3 x5y=-5 2x2y=-5 8x4y=-3 9x5y=-4 4x2y=4 2x2y=6 5x5y=3 2x3y=-1 9x2y=-8 6x6y=-3 5x2y=9 3x y=-9 x4y=6 2x2y=9 8x y=-9 6x6y=25 4x4y=-9 2x y=-7 4x3y=-3 x2y=4 3x5y=-5 3x7y=15 4x y=8 x5y=3 4x4y=9 2x2y=0 2x y=1 8x7y=29 4x5y=-4 5x3y=-7 5x3y=0 5x2y=1 3x5
2、y=9 6x4y=4 x2y=-3 2x y=-2 3x y=0 5x3y=-7 x9y=-9 3x6y=-23 3x5y=-3 2x4y=-3 x2y=-5 4x2y=7 2x8y=9 6x2y=-26 x3y=-8 5x3y=0 3x3y=3 x3y=9 2x3y=4 7x2y=-28 5x5y=5 3x4y=-1 2x5y=-1 2x4y=-2 6x3y=-2 7x8y=-26 4x5y=-5 3x3y=-8 2x2y=-2 4x2y=8 8x5y=4 7x4y=-16 x y=-7 4x5y=7 x2y=-5 3x y=-6 2x6y=3 3x4y=-25 x y=-1 3x4y=-8
3、 2x4y=8 2x5y=3 8x9y=-3 9x8y=-12 5x3y=-7 x4y=0 2x4y=-7 5x5y=9 x7y=8 7x6y=8 x4y=-2 3x3y=-1 x3y=1 x y=2 6x2y=2 x2y=16 3x4y=1 5x3y=-1 3x4y=-4 2x y=6 5x4y=9 9x y=-20 3x4y=8 3x y=-4 2x4y=-8 2x4y=-6 7x3y=-2 9x8y=3 5x4y=3 x4y=1 5x y=-3 2x5y=-3 9x9y=9 6x2y=26 2x3y=-3 x2y=2 2x y=-1 x3y=4 5x9y=7 9x y=10 4x5y=8
4、 5x5y=2 2x y=-2 x y=-8 2x5y=-3 5x6y=4 2x3y=-2 5x5y=-7 2x y=5 4x y=-6 7x7y=-1 7x9y=-27 3x3y=2 4x3y=-8 2x3y=1 x y=8 7x9y=-4 8x5y=-21 3x y=-8 2x2y=2 5x3y=2 5x2y=-3 6x8y=0 7x3y=-27 2x5y=-9 x3y=2 4x4y=5 3x3y=2 6x2y=2 2x8y=10 2x2y=-3 5x y=-6 3x3y=-5 3x y=1 8x7y=-1 8x y=-21 x5y=7 4x2y=-7 4x5y=3 x y=4 4x6y=
5、5 6x5y=12 5x2y=9 3x5y=7 3x3y=-7 5x y=-3 7x y=-4 4x7y=4 5x y=-5 5x4y=-8 2x3y=5 5x5y=-7 2x7y=-5 6x5y=-9 4x3y=7 3x4y=-4 2x3y=6 2x y=-2 6x2y=-6 3x6y=21 2x3y=6 x5y=9 x y=5 4x y=5 x6y=1 8x6y=-12 3x5y=-8 3x y=3 4x3y=9 5x y=-7 4x4y=2 7x7y=-5 5x2y=4 3x y=9 x4y=-1 x4y=-7 5x5y=0 9x2y=25 x3y=-5 2x y=-3 2x3y=5 2
6、x3y=1 x6y=-7 8x y=-9 5x5y=-6 2x3y=-2 4x2y=8 5x4y=-5 4x8y=-7 3x6y=15 x2y=2 x2y=8 4x4y=-4 3x2y=9 8x8y=-1 8x2y=-25 5x4y=-8 4x4y=5 5x5y=-9 3x2y=5 3x6y=-6 2x y=-3 3x3y=3 5x y=-3 4x4y=-9 x4y=-3 8x7y=-8 6x7y=-22 5x3y=6 x5y=-3 2x3y=2 4x3y=-9 3x2y=-8 4x8y=22 4x y=-2 x4y=-5 2x5y=2 5x4y=0 2x5y=-6 4x7y=2 4x3y=9
7、 4x2y=3 2x5y=1 4x2y=4 5x y=3 4x8y=-22 x2y=7 2x2y=2 x5y=-3 x3y=0 5x y=1 8x6y=-26 x y=-3 4x5y=0 2x y=0 x3y=6 6x2y=-1 8x y=-8 2x5y=5 4x3y=7 3x3y=-5 4x5y=-7 x6y=-3 4x7y=-17 5x y=-9 2x5y=0 3x2y=4 5x5y=-4 x y=-3 3x y=-8 2x3y=8 x4y=6 4x5y=-1 5x2y=-5 7x2y=7 6x9y=0 4x4y=5 2x4y=5 2x y=-4 4x3y=-9 6x6y=1 7x5y=-
8、1 4x5y=9 3x5y=8 2x4y=7 5x5y=3 8x2y=-5 9x y=-24 2x3y=-7 4x y=-9 5x5y=3 x4y=-2 2x2y=9 x y=4 x5y=3 x2y=6 3x3y=2 4x5y=3 8x6y=-3 x3y=-7 5x2y=-6 3x2y=4 2x2y=-2 4x5y=6 x8y=-3 7x6y=-24 4x3y=-4 2x y=-5 2x2y=-7 4x2y=-3 4x3y=-5 2x7y=-25 2x3y=-5 3x4y=5 x3y=4 4x3y=-4 7x4y=-7 2x2y=12 x y=4 3x2y=6 2x y=-5 x y=5 5x
9、3y=-9 2x8y=-10 4x2y=7 x2y=-5 x y=-4 2x y=6 4x4y=-9 9x9y=27 3x2y=4 x2y=-7 5x5y=-5 3x y=1 2x9y=1 8x y=0 x4y=-4 3x4y=2 4x y=-6 2x5y=2 7x3y=9 4x3y=-4 3x5y=0 5x2y=-7 x y=-7 x5y=8 4x4y=2 6x4y=-8 4x y=-5 3x2y=-5 2x2y=-6 2x4y=3 4x6y=-6 2x6y=-9 5x3y=4 4x3y=-4 5x5y=3 5x y=9 3x y=-8 2x3y=-8 5x2y=-6 2x3y=-7 4x5
10、y=0 5x5y=-4 9x3y=6 x9y=22 2x4y=4 x4y=6 5x y=6 x4y=5 6x3y=-9 7x9y=18 3x3y=-1 5x3y=-8 4x5y=4 4x4y=0 x2y=8 5x3y=-1 3x3y=-1 x5y=-5 3x4y=4 2x3y=4 3x2y=9 6x4y=-6 2x4y=6 2x3y=-2 3x4y=0 x5y=8 7x y=-2 6x5y=30 4x2y=5 5x3y=-5 3x4y=5 4x4y=3 8x5y=4 4x6y=-21 5x y=-5 x5y=2 2x y=-7 4x3y=-6 8x2y=-3 2x3y=-21 4x4y=-9
11、5x4y=-3 2x2y=-2 2x4y=0 9x4y=9 4x7y=-9 5x4y=-8 4x2y=5 x4y=5 2x y=3 3x8y=-7 2x4y=-22 x2y=-3 3x y=2 2x2y=8 4x3y=9 8x7y=5 6x y=1 x5y=-4 3x2y=-9 2x4y=3 5x5y=-2 6x3y=-6 4x8y=-25 5x3y=4 x5y=5 5x4y=-9 2x5y=-6 2x6y=3 x8y=0 2x2y=-9 3x y=-6 5x4y=-5 x2y=2 4x8y=2 5x2y=14 4x y=6 x3y=-9 5x3y=-1 x5y=-3 3x7y=-9 3x3y=-21 2x5y=4 5x4y=-9 2x y=3 4x2y=3 3x6y=-2 5x3y=-23 x3y=2 5x3y=-1 3x2y=-7 2x5y=6 6x3y=-9 3x6y=28 x5y=8 3x3y=2 3x3y=0 x2y=-7 2x3y=0 4x y=21 3x4y=4 x3y=-9 2x y=2 5x3y=4 9x4y=-8 3x8y=-2 x2y=4 4x4y=-4 2x4y=-9 4x y=0 3x9y=-4 x9y=-11 2x2y=-5 2x4y=9 x2y=2 4x3y=1 5x8y=-3 6x9y=-19 2x3y=7 x2y=-5 4x3y=-5
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