二元一次方程组练习题21.docx

1、二元一次方程组练习题21 5x3y=-7 3x5y=7 2x8y=-1 x4y=4 4x5y=8 x5y=0 3x3y=9 x9y=-6 5x3y=8 5x5y=-1 x2y=5 4x y=-7 x5y=-5 6x y=7 x2y=-17 5x4y=-3 5x2y=-3 5x4y=9 5x5y=-6 7x7y=8 3x4y=12 4x4y=-2 4x y=3 x3y=-8 5x3y=-7 6x y=5 6x6y=11 2x3y=1 5x3y=7 3x y=6 3x5y=-6 2x5y=7 5x5y=7 5x3y=-5 3x2y=3 x3y=-9 x4y=5 x9y=5 8x2y=28 4x2y

2、=-6 2x3y=-2 4x4y=-8 3x5y=-4 8x4y=1 2x6y=-20 4x5y=-6 2x4y=6 3x4y=5 3x5y=9 3x6y=0 3x3y=-20 4x2y=2 2x5y=-6 x2y=9 5x y=6 6x3y=-8 7x6y=28 x5y=9 5x4y=-7 2x3y=-5 2x2y=4 6x9y=1 7x2y=9 2x5y=-7 x2y=-7 3x y=-5 5x y=6 7x8y=-1 2x7y=30 4x y=0 5x y=5 x y=-3 3x4y=-1 3x7y=7 8x9y=1 2x5y=9 2x2y=2 4x5y=-2 5x3y=-6 9x y=

3、4 9x y=6 x2y=7 x y=-7 2x y=-3 5x y=4 6x6y=-7 5x y=-21 4x y=-2 2x4y=7 3x3y=9 2x5y=5 3x4y=-2 7x3y=11 5x4y=6 x4y=2 4x3y=3 4x5y=-9 4x3y=-2 7x6y=-12 4x3y=-3 5x5y=7 x3y=-4 3x5y=-8 3x3y=4 6x8y=30 x5y=3 3x2y=6 x2y=5 x5y=-2 7x5y=-3 x4y=0 5x y=3 x y=2 4x y=-9 2x5y=0 8x7y=-2 4x6y=15 x2y=8 x4y=3 3x y=2 3x2y=-8

4、6x4y=-6 3x4y=-15 2x2y=6 4x5y=4 3x y=7 x3y=-1 5x3y=3 x7y=-7 5x3y=8 5x5y=-3 4x5y=5 3x2y=5 6x6y=4 3x5y=6 x3y=-7 3x y=1 x3y=3 x2y=-8 8x6y=-5 2x4y=-11 4x4y=4 x5y=5 4x4y=-5 x2y=9 7x3y=3 4x4y=-16 x y=-2 x2y=-2 5x5y=1 4x5y=-6 9x2y=-1 6x9y=0 4x4y=8 2x4y=-8 2x3y=-5 4x5y=-5 3x y=3 6x6y=-19 x2y=-1 2x5y=1 2x4y=-

5、7 x4y=1 5x4y=7 8x6y=19 5x4y=-9 5x4y=2 4x3y=8 3x y=1 x9y=-6 2x6y=25 x3y=-7 x4y=-7 2x4y=-5 2x4y=-6 3x7y=0 5x4y=-6 5x3y=9 4x4y=-9 x5y=-2 5x3y=-1 5x8y=-9 3x6y=23 5x4y=-2 5x3y=-7 4x2y=-5 2x3y=2 2x6y=-1 7x3y=-12 3x y=-7 5x y=-3 5x4y=7 4x2y=-6 x2y=-8 6x6y=-19 4x4y=3 3x y=-1 3x y=7 2x2y=9 9x3y=7 6x3y=30 x4y

6、=3 3x3y=4 2x2y=-6 x y=-3 6x y=-6 8x4y=19 4x5y=-6 5x y=-4 2x4y=4 5x5y=-2 x y=-4 x y=-20 2x3y=-1 4x4y=-6 2x5y=6 5x5y=-1 6x2y=-3 4x5y=-18 5x2y=-5 4x4y=8 5x y=0 4x2y=-2 9x9y=1 2x y=-5 3x2y=1 2x5y=-6 x y=-7 5x4y=-2 9x5y=-5 7x7y=-25 2x y=-5 x5y=1 4x3y=-5 5x5y=7 8x y=-9 9x y=-5 2x5y=5 3x5y=-6 4x5y=1 2x5y=0

7、 9x9y=-2 9x5y=4 3x5y=3 x4y=2 5x4y=4 2x3y=6 4x y=7 4x y=-10 x y=-2 3x5y=8 x5y=-1 x y=-3 7x5y=-5 4x3y=-1 4x2y=9 2x2y=-7 4x2y=9 4x2y=5 5x y=6 3x4y=4 4x3y=4 x3y=-2 x4y=-6 2x3y=-5 3x4y=-6 x3y=-7 5x5y=5 2x3y=5 4x y=-5 2x y=0 6x7y=0 4x6y=16 x3y=5 4x4y=-1 3x3y=-7 2x2y=7 2x7y=-6 6x8y=-4 x3y=4 5x3y=-3 3x3y=-8

8、 5x5y=-8 3x3y=-6 6x2y=-2 5x4y=1 5x y=8 4x y=1 x y=-6 4x2y=0 2x3y=-7 2x4y=-4 3x3y=5 2x5y=5 2x2y=9 x4y=5 x8y=-1 3x2y=4 5x y=9 5x y=9 5x2y=-8 9x y=7 4x3y=-18 2x3y=-8 x5y=-2 2x5y=-9 2x y=5 x4y=-8 6x6y=-24 3x4y=2 3x4y=-1 4x5y=-5 2x3y=1 2x6y=8 3x7y=-25 x2y=-2 3x5y=-6 3x3y=-4 2x5y=4 8x y=-9 7x2y=-9 3x4y=8

9、x4y=-1 2x5y=5 4x3y=-7 9x4y=4 8x3y=-21 x2y=7 4x y=-6 2x3y=-6 4x y=-8 9x3y=-1 x y=-10 2x5y=5 x2y=-6 2x3y=-3 2x4y=-1 3x6y=6 x5y=22 2x5y=1 5x5y=3 2x3y=1 2x3y=1 9x4y=6 3x5y=-18 4x3y=-2 4x3y=8 2x4y=8 5x y=-6 5x9y=8 3x y=13 x2y=-2 4x4y=-5 3x y=-2 x2y=1 6x8y=6 x4y=-6 3x3y=6 5x4y=-3 3x5y=-1 5x4y=2 8x6y=-6 6x

10、3y=9 x5y=-3 4x y=3 2x5y=1 5x5y=-7 6x5y=5 6x9y=-18 x3y=3 x2y=0 4x5y=-6 3x3y=2 6x6y=-8 5x7y=0 5x3y=-4 2x3y=-2 3x y=5 x4y=3 6x8y=3 9x y=10 3x3y=5 3x4y=-2 3x4y=-6 2x3y=6 5x5y=-2 6x8y=-30 4x5y=-7 x2y=3 2x y=2 3x y=9 3x6y=6 8x2y=-17 2x2y=-9 5x4y=8 3x4y=8 4x y=7 6x y=1 3x4y=-1 4x5y=5 4x5y=-5 x4y=-9 x y=-8

11、9x7y=-3 2x3y=-20 3x y=-6 x y=-4 3x2y=8 3x3y=7 9x2y=-7 x5y=-10 x y=0 2x y=5 2x5y=-4 2x y=-1 4x2y=-4 2x8y=18 x5y=6 x4y=3 x4y=9 3x4y=4 3x2y=-7 5x y=2 2x3y=6 x5y=5 5x5y=2 5x4y=-3 x9y=0 4x4y=22 4x2y=7 5x4y=0 2x y=-6 3x2y=7 9x2y=-7 x y=-4 3x4y=-1 4x3y=5 4x4y=9 5x y=3 4x9y=6 2x6y=-14 4x5y=2 4x4y=-8 x2y=-4 3x y=3 x8y=6 7x9y=13 5x y=6 5x4y=9 5x4y=-6 2x y=-9 7x6y=-8 8x3y=-20 5x y=9 x y=9 2x5y=8 x3y=7 5x5y=-4 9x2y=-11 5x y=7 5x3y=-8 x2y=5 3x5y=-7 4x5y=-4 3x9y=9 4x y=-2 3x y=-4 4x y=3 x y=-7 3x9y=7 2x8y=16 x5y=-9 x2y=-9 3x3y=9 4x4y=0 4x4y=4 4x4y=12 2x4y=-4 5x2y=4 4x4y=-9