二元一次方程组练习题250

1、3x y=-94x 5y=66x y=6x2y=97x 2y=252x 3y=03x 4y=-83x 2y=35x y=73x 4y=34x 9y=-18x 4y=13x 5y=192x 4y=-94x 4y=82x 4y=-59x 5y=25x 2y=44x 2y=53x 5y=-94x 6y=85x 3y=-65x 6y=-1x 5y=-47x 5y=12x y=-7x 4y=-12x 2y=-65x 5y=105x 2y=-74x 5y=-82x y=19x 3y=-13x 5y=-85x 2y=-174x y=72x3y=74x 2y=53x 4y=-13x 4y=38x 7y=294

2、x 3y=94x 4y=-44x 4y=42x 8y=-1x5y=-58x y=11 4x 2y=04x y=65x 2y=-15x 7y=85x 2y=-99x 5y=53x 2y=-25x 2y=-14x 4y=62x 4y=24x 5y=75x 2y=-172x 2y=-33x 2y=64x 2y=15x 2y=34x 3y=-12x 8y=103x 4y=-54x 4y=-24x 3y=66x 8y=-3x y=05x 3y=7x y=-95x y=-55x 2y=56x 3y=-2x4y=-34x 6y=175x 2y=-13x 3y=-52x 5y=87x 5y=93x y=75x

3、 7y=10x2y=-82x 2y=-83x 2y=42x y=-24x 4y=-89x y=3 3x 4y=-1x 5y=-74x 3y=78x 3y=04x 5y=19x y=204x 5y=73x 2y=-73x 5y=-42x y=-62x 3y=-46x 8y=53x 2y=-53x 3y=85x y=03x 8y=-83x 4y=-77x 9y=13x y=-83x 2y=-93x 5y=04x 4y=-15x y=-77x y=-263x 5y=02x 4y=-34x 2y=77x y=72x y=46x 3y=9x 2y=-54x y=-5x2y=-89x 6y=18 5x 3

4、y=9x5y=2x 2y=25x 5y=-35x 3y=-46x 8y=-74x y=78x y=23x y=83x 5y=82x 5y=-66x 3y=74x 3y=42x 9y=-173x 4y=-49x 4y=82x 4y=23x 5y=-95x y=-45x 5y=-18x3y=-22x 3y=64x y=53x 8y=-44x 3y=34x 4y=85x 3y=25x 2y=-65x 2y=-49x y=1x3y=-63x 8y=74x 2y=-67x 9y=83x 5y=-86x 5y=-174x y=22x 4y=-63x 5y=-52x 5xy=8 y=-22x 7y=45x

5、4y=08x 5y=-272x 4y=02x y=-55x 5y=-3x9y=-45x 2y=-58x 7y=-255x 3y=9x 4y=42x 2y=04x y=-54x 2y=-8x8y=274x 4y=45x 7y=-13x 4y=-52x 4y=-32x 3y=-14x 5y=-243x 4y=1x 4y=5x 5y=74x 8y=-54x y=57x 2y=104x 3y=-5x 5y=44x 4y=6x4y=-5x y=-74x 3y=254x 2y=63x y=23x y=-77x 9y=-12x 4y=64x y=03x 2y=-53x y=62x 2y=-68x 5y=-6

6、5x 3y=52x y=-192x 3y=52x 5y=52x 3y=-86x 2y=53x 4y=-99x 4y=53x y=-44x 2y=1x 4y=-39x 8y=-54x 5y=-89x 2y=-32x 5y=-73x 2y=23x 4y=08x 4y=22x 2y=-64x 7y=-292x y=-83x y=5x 4y=82x 3y=32x 5y=09x 2y=-18x 5y=-62x 4y=5x 5y=-36x 9y=-72x y=-65x 3y=-285x y=53x 5y=74x 3y=-19x 4y=-3x5y=17x 5y=-294x 3y=-22x 4y=6x 2y=

7、-96x 3y=-25x 4y=-66x 7y=-45x 4y=-32x 8y=-5x3y=-95x 3y=-63x 5y=-32x 3y=-23x 2y=-94x 4y=75x 4y=-58x 6y=03x y=93x 4y=6x2y=82x 8y=54x 2y=-33x 8y=-303x 2y=73x 2y=-75x 3y=03x 5y=-85x 3y=-35x 6y=0 53xx62yy=-07x 3y=-115x y=2x y=3 2x 4y=-59x 5y=-24x y=5x8y=-243x 2y=87x 8y=-74x 2y=75x 3y=9x y=1x 4y=-154x 3y=9

8、5x 3y=93x 3y=-12x y=-22x 2y=56x y=262x 3y=-33x 5y=-3x 2y=76x 4y=02x 5y=-55x 7y=73x 5y=-85x 4y=24x 4y=69x 9y=-45x y=-57x 9y=135x 5y=-67x 8y=24x 5y=-7x y=8 x 3y=95x 7y=304x 2y=-2x 5y=87x 3y=93x 4y=1x 3y=95x 9y=172x y=-75x 3y=-7x 3y=-94x y=1x y=-7x y=-292x 4y=75x 3y=-4x 4y=-46x 3y=-85x 5y=-97x 2y=-93x

9、y=-6x 5y=-4x 2y=-46x 4y=-34x 4y=-88x 5y=24x 2y=-6x 5y=142x 2y=14x 3y=12x 4y=-33x 7y=03x 4y=73x 2y=-92x y=72x 7y=45x 4y=27x 9y=72x 3y=-24x 2y=2x y=73x 9y=-93x 5y=55x y=-145x 3y=65x y=35x 3y=3x y=5 x4y=-55x y=-45x 3y=-1x 3y=5x 3y=-12x 4y=24x 4y=19x 8y=-113x 5y=92x 4y=33x 5y=-82x 3y=05x 4y=35x 9y=252x

10、2y=72x y=-32x 5y=-97x 4y=-12x y=39x 8y=-145x 3y=-1x y=9 5x 5y=-54x 3y=1x3y=46x 6y=-135x 5y=35x 4y=45x 5y=02x 5y=45x y=-23x 8y=4x y=65x 3y=5x 4y=36x 5y=55x 2y=18x 8y=-144x y=36x y=-52x 4y=35x 9y=255x 4y=2x 3y=-62x 2y=73x 3y=-1x 5y=46x 7y=-64x y=74x 6y=32x 3y=03x y=-104x y=9x 2y=5x 5y=38x y=25x 5y=14x

11、 5y=33x y=-12x y=-24x y=42x 8y=142x y=43x y=-9x 5y=-6x6y=0 2x 4y=88x 6y=84x 5y=67x 6y=-85x y=94x 7y=-102x 4y=-64x 3y=-12x 5y=-65x 2y=-65x y=98x 4y=-42x 5y=-23x 4y=-75x 2y=-6x 4y=-34x 2y=-4x5y=-5 2x 2y=65x 9y=-204x 3y=-15x 2y=92x 3y=-73x 2y=-72x 2y=62x 6y=92x 4y=92x 5y=63x 2y=89x 7y=-62x 2y=-15x 5y=-33x 2y=-8x7