1、二元一次方程组练习题149 2x2y=-6 4x3y=3 9x6y=8 3x4y=7 2x4y=3 3x4y=7 5x4y=3 x3y=7 4x2y=-10 2x3y=-2 3x2y=3 3x2y=-6 4x4y=-4 9x6y=-6 2x4y=-2 5x y=5 4x y=-6 5x2y=-3 3x y=-3 5x7y=1 6x3y=-15 4x4y=-4 4x5y=2 3x3y=-6 3x3y=-4 4x y=4 7x2y=12 x5y=-8 x2y=2 2x3y=0 2x4y=4 2x8y=4 3x6y=-25 4x5y=-9 2x2y=3 x5y=-8 5x3y=0 9x2y=-7 3
2、x7y=6 x y=9 3x4y=6 2x4y=6 5x y=9 3x8y=7 3x7y=13 2x2y=2 x2y=1 2x4y=7 5x2y=2 8x6y=-7 9x5y=25 4x3y=6 2x2y=3 3x y=-8 2x4y=-2 3x8y=7 4x5y=-26 5x3y=7 3x4y=9 x4y=-3 3x3y=-7 2x3y=-3 3x3y=12 x3y=4 x4y=-6 2x y=9 3x3y=1 4x7y=8 7x9y=2 2x2y=-7 x4y=-2 5x3y=-7 5x5y=-8 6x9y=5 2x4y=20 3x4y=-2 5x2y=-7 2x y=-8 4x3y=2
3、9x5y=3 x6y=4 2x5y=-6 2x3y=2 4x4y=-7 3x y=-7 8x6y=0 4x4y=5 3x2y=7 3x5y=-5 x2y=-7 x2y=9 6x7y=4 4x7y=26 5x5y=6 x4y=7 3x y=-4 5x5y=7 4x3y=-6 9x y=5 x2y=-5 2x y=7 2x2y=6 2x4y=1 3x4y=-4 5x2y=5 2x y=-6 x4y=7 3x5y=7 3x2y=7 3x9y=1 5x6y=5 3x5y=6 4x y=-9 3x3y=-4 2x4y=5 8x4y=0 4x2y=-24 2x2y=-2 x2y=3 2x3y=-2 5x3
4、y=5 3x3y=-6 4x5y=0 2x4y=-6 3x3y=9 x4y=8 x4y=-7 4x4y=3 3x4y=-18 4x3y=9 5x4y=9 4x4y=4 4x2y=-5 2x2y=4 8x3y=-5 3x2y=-3 4x3y=-1 4x y=1 x4y=1 4x y=-2 8x6y=14 x5y=0 5x5y=-3 x4y=-7 x3y=7 4x9y=3 6x y=-7 2x3y=-3 5x5y=7 x4y=-4 x5y=6 8x3y=-9 2x4y=-11 5x2y=2 4x2y=-6 x2y=-2 x y=-1 9x3y=5 4x4y=-22 2x4y=-1 5x3y=-4
5、5x4y=-4 2x y=5 x3y=-6 7x2y=-14 x5y=1 3x5y=4 2x4y=-9 3x y=3 8x5y=7 8x7y=-12 4x3y=3 4x y=-6 3x y=1 4x2y=5 5x2y=4 4x6y=5 2x4y=3 5x4y=6 x3y=8 x2y=5 5x4y=-8 6x6y=8 5x5y=-7 2x y=9 5x5y=1 2x3y=8 7x2y=2 2x8y=12 4x4y=-1 2x5y=8 2x2y=7 3x5y=-3 6x8y=-2 8x4y=19 x2y=5 4x3y=2 4x y=5 5x3y=9 8x2y=-9 6x8y=28 x5y=-6 5
6、x2y=-2 x3y=0 3x4y=-2 x4y=-3 7x y=-5 2x5y=3 3x2y=-5 5x y=-4 x3y=-2 6x6y=2 6x9y=-2 x5y=6 4x3y=-1 4x y=0 4x5y=4 2x y=3 8x9y=-9 2x5y=-6 3x5y=3 4x y=1 3x2y=-5 8x9y=3 7x2y=10 5x4y=8 x3y=-8 4x y=5 2x5y=-9 8x6y=3 9x y=30 5x4y=5 5x3y=3 2x4y=-5 4x2y=-7 6x5y=1 6x7y=-12 x5y=2 5x2y=2 x5y=-2 2x5y=5 x9y=1 6x7y=-10
7、 5x y=7 4x5y=9 x5y=-8 5x y=-3 9x7y=5 5x7y=-21 4x5y=-4 3x2y=-7 4x y=6 x4y=-9 x2y=3 9x8y=-13 2x4y=-8 4x y=2 3x2y=-9 2x2y=5 3x8y=1 4x6y=20 4x5y=-7 3x4y=9 2x5y=-4 3x y=5 2x4y=-8 6x5y=27 x2y=4 5x2y=-4 2x5y=-7 x2y=-7 2x2y=5 8x5y=-27 x y=-1 4x5y=-5 2x5y=8 5x3y=-6 2x2y=6 8x9y=9 x3y=3 x5y=-4 x2y=9 4x2y=2 x2y
8、=4 6x y=2 4x5y=-2 4x5y=7 3x5y=-9 3x3y=0 9x7y=5 2x9y=18 5x5y=9 x4y=-6 3x y=9 4x2y=-2 9x9y=4 9x9y=25 5x4y=-8 3x4y=1 4x5y=-2 x y=3 7x y=-5 5x y=-22 4x5y=3 3x5y=-7 5x3y=9 2x2y=6 5x7y=0 8x5y=2 2x3y=-2 3x4y=-7 3x2y=8 x y=-2 x3y=-1 x y=-30 x4y=5 4x3y=-3 x y=5 x y=7 5x8y=9 4x7y=-21 4x3y=9 2x4y=-9 4x4y=-2 3x
9、3y=6 5x3y=4 7x2y=23 5x3y=6 4x2y=7 5x4y=5 2x y=0 8x3y=-8 x8y=-14 3x3y=-5 x2y=-6 2x3y=-9 x3y=2 x5y=4 6x y=12 x y=-4 4x2y=-7 3x2y=-9 5x4y=8 5x9y=-8 5x3y=-4 5x3y=-5 4x3y=1 3x4y=-5 3x5y=7 2x7y=3 3x4y=-17 4x3y=-1 3x3y=-6 4x y=1 x4y=-5 3x5y=-4 x7y=-19 2x y=-2 3x2y=-3 x y=2 5x4y=7 8x6y=3 4x3y=15 x3y=-5 5x3y=7 2x3y=-4 x4y=-9 6x6y=5 3x7y=6 5x3y=8 3x y=-3 3x2y=-7 2x y=-7 5x4y=-7 7x5y=-6 3x y=6 x y=6 x y=-2 4x y=-8 5x3y=6 9x2y=-9 3x5y=-4
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