1、人教版七年级数学下册二元一次方程组练习题298 5x2y=6 3x3y=-8 5x3y=-2 2x3y=-1 x4y=-1 x2y=5 5x3y=-5 8x2y=-7 6x2y=14 4x3y=1 2x2y=-3 5x4y=2 4x3y=-9 8x4y=-2 9x6y=19 4x4y=9 5x3y=-2 3x2y=8 3x5y=2 7x2y=7 7x y=29 4x2y=-1 x3y=-5 x5y=9 x2y=-8 6x2y=-5 2x2y=5 5x3y=8 5x2y=-2 x3y=8 3x4y=7 4x2y=7 3x7y=-10 3x5y=-7 3x2y=2 5x3y=8 4x y=-5 9
2、x7y=-7 6x5y=12 5x2y=-1 2x y=-8 3x2y=-6 3x3y=-7 3x y=-7 2x8y=10 5x4y=-7 4x2y=-7 2x4y=-4 2x y=2 2x7y=-1 6x7y=-29 5x2y=-3 2x3y=-3 3x3y=9 x2y=-1 8x6y=-9 5x9y=-19 5x4y=-2 5x3y=-8 5x2y=9 3x5y=4 4x8y=1 9x2y=-20 5x3y=-6 2x3y=7 5x3y=0 4x4y=-6 8x3y=-3 2x8y=-5 x5y=7 3x5y=-1 5x2y=-9 3x4y=0 5x5y=9 4x y=13 x3y=9
3、5x2y=-8 3x3y=-9 3x4y=-5 x8y=5 9x8y=-30 2x4y=1 5x5y=-1 5x4y=1 3x2y=-5 3x9y=9 5x9y=-15 2x5y=5 2x2y=-8 3x y=4 5x y=8 2x2y=8 5x y=23 4x y=-6 2x5y=-3 3x3y=-7 x2y=-4 7x6y=5 9x4y=10 2x y=-5 5x2y=2 x5y=-9 3x2y=3 7x8y=5 4x6y=12 5x3y=9 x5y=5 3x y=7 4x3y=1 5x3y=-2 9x7y=-13 2x2y=0 5x4y=-8 x3y=-2 3x3y=-7 x y=7 3
4、x2y=0 x y=3 x4y=-4 4x2y=8 2x4y=4 3x8y=-4 2x y=-1 x4y=7 5x2y=-5 2x3y=-3 3x4y=6 x7y=2 7x3y=17 4x4y=7 x2y=0 x3y=1 x2y=5 8x8y=7 5x6y=-1 5x4y=9 x y=6 2x4y=-4 2x y=7 2x5y=0 3x4y=20 4x5y=-1 x4y=5 x5y=-4 x5y=3 2x2y=1 6x5y=-16 3x2y=5 5x y=-3 x4y=5 4x5y=-7 9x8y=-7 2x4y=15 2x y=0 3x3y=1 5x y=9 4x3y=9 6x2y=8 x5
5、y=-16 2x3y=1 5x5y=2 3x5y=6 4x2y=1 6x8y=6 2x2y=26 x2y=-9 5x3y=-3 2x4y=9 3x2y=-3 9x4y=0 3x6y=28 5x3y=6 5x y=-5 5x4y=1 3x2y=-7 2x7y=-1 7x4y=19 2x4y=3 x5y=4 5x3y=8 3x5y=3 3x8y=-9 8x4y=28 x3y=3 4x4y=9 x2y=8 3x4y=-5 4x9y=0 3x4y=24 x2y=7 2x2y=-2 2x2y=4 5x2y=7 4x8y=8 x8y=2 2x y=0 3x3y=9 4x y=0 4x5y=0 3x5y=-
6、9 x3y=18 5x y=0 4x4y=-1 5x2y=9 4x4y=-6 7x3y=-3 x7y=14 2x5y=-5 2x y=-1 4x3y=3 5x3y=-2 4x4y=-9 5x8y=-19 3x y=8 x4y=2 4x3y=-9 x y=5 9x7y=-5 3x3y=-17 x5y=-5 4x5y=5 3x4y=7 5x5y=8 8x7y=5 8x8y=-11 3x y=-3 4x2y=9 5x3y=-4 4x5y=-6 x2y=1 4x3y=-3 5x4y=-6 x5y=-2 3x y=-8 5x y=-2 6x5y=-5 9x2y=-17 5x2y=-6 x5y=-5 2x
7、3y=-9 x y=6 7x7y=7 5x7y=10 4x y=3 4x5y=9 4x3y=-6 x y=6 3x8y=2 5x8y=13 2x2y=3 5x4y=8 4x y=-1 2x5y=3 9x6y=-6 8x9y=19 3x3y=1 x4y=5 x3y=-3 3x2y=-3 4x3y=4 6x3y=-7 5x2y=3 4x y=4 4x y=-4 2x y=9 4x8y=7 6x9y=7 2x4y=3 2x y=6 5x3y=-1 5x y=-2 8x5y=7 7x5y=23 4x2y=-8 4x5y=-5 5x5y=-4 5x5y=3 x y=2 4x5y=-18 2x3y=-9
8、3x4y=1 5x2y=-6 4x y=5 9x4y=-5 4x6y=-11 4x4y=-5 3x3y=2 x4y=2 5x2y=6 5x9y=4 7x3y=20 2x4y=-5 4x y=1 3x2y=3 5x2y=-2 x6y=-6 4x9y=-5 5x5y=5 x3y=-8 3x3y=-7 x5y=1 x4y=6 3x7y=5 4x4y=1 5x4y=3 4x y=4 4x3y=-3 4x5y=-5 4x9y=24 2x3y=-4 5x5y=-9 x3y=5 5x4y=0 7x4y=8 8x5y=-10 x2y=5 x3y=-3 3x3y=2 4x4y=1 8x y=0 3x6y=17
9、x y=-7 4x2y=-3 2x3y=-2 2x4y=-8 9x3y=2 7x8y=2 2x5y=-2 5x y=-5 x2y=-5 x4y=1 2x9y=4 7x4y=-13 5x2y=6 5x2y=2 4x2y=6 x4y=5 4x7y=-8 3x y=-24 4x y=2 x y=-4 5x2y=0 x y=4 4x8y=6 9x3y=8 2x5y=6 2x2y=-6 4x2y=5 2x5y=-4 9x2y=-4 3x2y=17 2x2y=-2 5x y=1 x5y=1 x2y=5 7x4y=4 9x2y=28 2x5y=2 x5y=7 3x4y=8 5x5y=4 6x4y=0 3x
10、y=15 5x4y=7 5x4y=-5 2x4y=-3 4x2y=-4 8x y=7 8x4y=-7 x5y=1 4x y=-3 4x2y=-1 3x3y=4 2x2y=4 4x3y=4 5x4y=5 x3y=3 x3y=-8 4x4y=-1 x3y=-8 9x2y=12 3x5y=0 x4y=-5 4x2y=4 5x y=-2 2x9y=1 2x7y=10 4x4y=1 2x4y=-3 4x2y=8 2x2y=-5 9x2y=3 9x6y=24 5x2y=-9 4x5y=-7 x4y=3 4x5y=2 5x2y=0 6x2y=-24 2x y=2 4x3y=-7 2x3y=1 x4y=-6
11、4x5y=9 x5y=-12 5x4y=5 5x5y=-8 5x3y=0 5x2y=2 8x8y=9 6x y=-2 5x y=-5 4x y=2 x y=6 5x2y=9 9x3y=4 8x8y=17 2x5y=6 x2y=-7 x2y=-5 x4y=-1 2x9y=-8 9x9y=-1 2x3y=5 4x5y=-8 2x5y=9 3x4y=1 7x7y=-3 6x3y=25 x5y=-6 2x y=-4 5x5y=3 5x y=4 5x9y=2 x3y=-17 3x5y=4 2x3y=1 x y=-9 4x2y=6 8x4y=-2 x9y=5 3x y=1 5x2y=-6 x2y=-5 2x4y=6 2x3y=8 7x7y=6 4x y=-9 4x4y=-1 2x2y=4 5x4y=-1 7x5y=-4 7x2y=-16 4x2y=8 x3y=5 5x5y=8 4x y=-7 6x4y=8 8x7y=16 4x5y=-5 4x2y=-1 3x5y=8 3x5y=-8 3x6y=-1 8x7y=0 3x3y=-6 3x4y=4 x3y=3 3x2y=1 3x9y=3 5x8y=0 4x4y=0 x5y=-2 x3y=-6 5x2y=0 2x3y=6 2x4y=25 4x3y=-8 3x y=9 x y=-7
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