二元一次方程组练习题180.docx

1、二元一次方程组练习题180 x y=-2 7x7y=4 8x7y=-23 2x4y=7 x2y=1 x3y=9 x3y=6 2x3y=-3 8x5y=-4 3x3y=0 2x y=-2 5x5y=-4 x2y=1 7x9y=5 6x6y=-22 5x2y=-3 2x y=-9 5x5y=7 5x4y=-1 8x2y=5 9x y=15 3x3y=-6 3x y=4 4x4y=6 5x y=-9 8x4y=-1 7x6y=16 4x3y=-2 x4y=8 2x y=9 5x5y=3 4x7y=1 3x3y=-26 3x y=3 x4y=-6 2x2y=-4 x2y=4 6x3y=-1 3x4y=

2、2 x2y=-1 5x y=2 2x2y=8 x3y=7 9x5y=0 2x2y=25 x2y=-2 5x4y=6 3x5y=7 x4y=8 2x7y=-9 6x7y=-28 5x2y=5 2x y=-7 3x2y=-2 2x5y=2 8x8y=-8 9x2y=14 x5y=-5 4x2y=-2 2x3y=-2 5x2y=-2 6x7y=7 3x4y=-9 4x3y=5 5x5y=1 x y=4 2x3y=-4 x7y=-6 4x4y=27 3x4y=3 3x3y=6 x y=0 x2y=-9 8x5y=5 5x y=-7 3x y=3 2x2y=8 x5y=-1 4x y=-5 9x7y=-

3、5 4x3y=-2 3x2y=-7 5x y=7 4x4y=8 x y=6 5x2y=-3 6x5y=-30 2x y=4 3x3y=-4 5x4y=5 4x4y=8 8x2y=9 9x8y=20 5x4y=-3 2x4y=-2 2x4y=-4 3x5y=-6 x2y=1 9x3y=30 3x2y=5 5x2y=0 4x y=2 2x5y=-7 6x6y=8 9x4y=19 3x y=6 5x3y=-1 2x3y=4 x4y=2 4x4y=-1 5x6y=-24 3x y=5 x2y=-4 4x y=3 2x y=1 6x8y=-5 6x8y=10 5x2y=-8 3x y=6 5x2y=-8

4、 x5y=4 2x8y=9 8x5y=26 4x y=-2 2x4y=5 x y=-4 x y=2 3x8y=-9 5x2y=23 4x4y=-5 x2y=9 x3y=5 4x y=-4 9x y=-5 4x9y=-17 2x y=9 x3y=6 5x y=2 2x5y=-7 7x9y=6 7x8y=30 5x5y=7 3x4y=-5 x2y=-4 3x y=-4 3x9y=9 x4y=6 5x2y=1 2x2y=-8 2x y=0 x4y=8 9x8y=9 7x8y=-17 2x4y=0 2x4y=6 4x5y=-9 5x2y=-1 7x7y=1 x7y=18 4x5y=-5 3x3y=3

5、3x2y=3 3x3y=-4 7x3y=4 x y=-8 x y=-4 5x2y=5 4x2y=9 x5y=9 2x7y=-9 9x2y=23 2x4y=6 4x2y=-2 3x4y=0 2x4y=8 3x2y=9 x6y=-17 3x4y=2 4x5y=6 2x2y=-9 5x3y=1 6x3y=-6 8x7y=19 2x y=2 5x2y=0 5x y=6 5x4y=-8 2x8y=7 6x2y=-27 2x5y=-2 4x3y=-2 2x3y=4 4x2y=-7 2x4y=7 5x8y=14 3x2y=-6 x3y=-7 5x y=-5 3x4y=-6 7x4y=4 9x8y=24 4x

6、4y=-7 x y=-2 3x y=6 4x y=2 4x2y=4 7x8y=-20 2x y=0 5x2y=1 4x5y=7 3x5y=5 3x2y=-6 2x9y=-15 5x y=6 2x4y=2 4x5y=-4 5x2y=-4 4x9y=-6 6x2y=8 4x3y=0 x5y=3 2x y=6 2x3y=-6 2x4y=-2 7x3y=30 x5y=9 x5y=-2 4x4y=-6 x3y=6 7x3y=7 9x5y=-26 x5y=-7 x3y=-8 x y=-6 3x y=-1 5x9y=2 8x6y=-29 3x2y=-2 4x2y=9 4x4y=-6 4x5y=-4 7x8y

7、=-4 2x5y=16 3x y=4 5x2y=-9 2x3y=0 2x4y=6 4x2y=4 x6y=-29 2x5y=-4 2x2y=3 5x y=1 2x2y=8 6x7y=0 7x2y=-7 2x y=3 4x3y=-5 2x4y=-2 2x3y=2 7x9y=-6 6x6y=0 x4y=-7 x2y=1 4x4y=-8 x2y=6 8x4y=-1 x y=10 2x y=9 x2y=3 4x5y=-2 5x2y=-3 2x2y=-5 4x6y=-23 5x y=6 x y=-6 5x3y=-1 3x5y=-8 2x2y=-3 6x6y=-10 2x4y=7 4x3y=-1 2x5y=

8、7 x y=7 2x7y=-2 7x5y=7 4x3y=3 2x3y=-1 3x5y=1 3x4y=-2 2x4y=-7 5x2y=29 x2y=6 2x5y=-9 4x2y=7 x y=-2 7x7y=-3 2x5y=-26 4x4y=-9 4x3y=9 2x4y=-6 2x2y=5 x y=8 8x y=5 4x y=4 5x5y=-6 2x4y=9 x2y=-6 7x y=3 2x5y=19 2x2y=-2 5x5y=4 3x5y=9 5x y=8 5x3y=-6 3x9y=20 3x4y=9 4x4y=-6 5x5y=7 3x y=-9 9x2y=8 9x5y=-24 3x3y=6 5

9、x3y=5 5x2y=4 x3y=6 2x4y=0 9x4y=-15 4x5y=-1 4x2y=-2 5x4y=6 3x3y=2 2x5y=-8 4x6y=0 3x5y=2 3x3y=-5 4x5y=-9 4x4y=-8 8x4y=-7 6x4y=-22 x3y=-2 3x4y=-2 2x y=0 2x5y=5 4x y=-2 3x8y=-29 3x2y=-8 4x3y=-5 5x4y=0 2x4y=5 6x6y=0 2x2y=0 3x3y=1 4x5y=9 5x5y=4 5x5y=2 7x4y=9 9x7y=30 4x y=-1 4x4y=-9 4x5y=8 3x4y=5 3x2y=-1 5x7y=-28 x5y=1 2x2y=1 x3y=7 4x4y=-7 9x5y=6 2x y=-30 3x3y=6 2x4y=-8 5x5y=6 2x4y=7 6x5y=6 x3y=20 5x5y=1 x5y=5 2x2y=-5 x4y=-7 6x7y=-7 9x5y=23