二元一次方程组练习题137

1、5x 4y=-74x 2y=2x 5y=25x 2y=57x 4y=28x2y=03x 4y=-64x 3y=06x 5y=8x4y=-74x 3y=-243x y=-33x 2y=03x 4y=44x 2y=22x 3y=-13x 8y=194x y=-54x 4y=-6x 5y=-92x 7y=-52x 5y=42x 5y=-13x 4y=88x 7y=-24x 3y=-23x 4y=-72x 5y=43x 9y=0x4y=-44x 2y=94x 5y=45x 9y=95x 4y=-64x 2y=13x 4y=85x 8y=12x 5y=83x 2y=-25x 2y=95x 8y=23x

2、5y=82x 2y=6x 5y=66x 5y=-65x 4y=-37x 8y=7x 5y=94x 2y=15x 4y=-6x 3y=-85x 4y=53x y=-35x y=43x 2y=-55x 2y=87x 8y=-25x 3y=-65x 9y=16x 4y=04x 9y=95x 3y=44x 3y=-84x 5y=-35x 9y=245x 5y=-1x 2y=5 x 3y=-76x 6y=7x5y=09x 9y=25x2y=73x y=-9x y=-6x6y=-54x 3y=05x 7y=-162x 5y=42x y=33x 4y=-32x 6y=-32x 4y=-1x 5y=-4x2y

3、=-44x 3y=-34x 5y=-65x 9y=-4x2y=82x 7y=43x y=55x 3y=45x y=-69x 4y=-12x 3y=-78x 3y=222x 5y=-25x 8y=-15x 5y=1x 3y=-23x 2y=-97x y=102x 5y=-34x 4y=-92x 2y=22x 2y=43x 5y=88x 9y=-112x 5y=-25x 5y=52x 2y=-64x 3y=-273x 5y=03x y=-15x 2y=-62x 2xy=9 y=-38x 2y=-92x 5y=44x 9y=295x 5y=79x y=-305x 2y=-14x 2y=14x 2y=

4、73x 3y=22x 3y=4x 2y=03x 5y=-93x 2y=-3x3y=-57x 6y=103x 3y=0x 5y=82x 3y=65x 8y=-4x5y=78x 8y=-224x 2y=54x 2y=0x 2y=-23x 5y=-23x 2y=-67x 7y=123x 2y=-64x y=-14x 4y=3x5y=8 4x 5y=52x y=8 3x y=-12x 2y=83x 4y=52x 8y=-64x 4y=-35x 9y=-42x 5y=5x 2y=-83x 5y=33x 2y=-15x y=-34x 4y=-305x 2y=62x y=-8x y=-85x 4y=-35x

5、 5y=-38x 7y=-223x 5y=-5x 4y=-72x 5y=7x8y=23x 3y=-48x 2y=-282x 2y=-32x 3y=-22x 4y=0x8y=12x 2y=-94x 2y=-28x 5y=72x 2y=04x 4y=-79x 7y=-15x 5y=-55x 5y=-10x 3y=42x 2y=1x 4y=-2x4y=-35x 2y=-22x 9y=-135x 5y=-6x 4y=-52x 3y=4x4y=0x3y=03x 8y=293x 3y=9x y=-4 x 3y=14x 8y=-85x 3y=-32x 6y=122x 3y=-64x 5y=04x 2y=-2

6、5x 5y=-7x2y=56x 6y=165x 2y=-34x 2y=9x 3y=-54x 6y=-24x 3y=6x 6y=154x 2y=24x y=0x 3y=53x 8y=73x 4y=-28x 4y=28x 5y=-34x 2y=2x 2y=-6x4y=-23x 2y=-58x 7y=-11x 5y=92x 2y=04x 4y=-63x 4y=-8x4y=26x 5y=16x 5y=2x 4y=8 x y=-39x 9y=62x 5y=16x 6y=112x 3y=05x 3y=-85x 2y=15x 3y=-44x 3y=4x 2y=-94x y=-62x 3y=12x 5y=-6

7、x 3xxy=8y=3x7y=203x 3y=-84x 5y=42x 5y=47x 7y=-62x 3y=-16x y=-172x 4y=-54x 3y=34x 2y=-23x 4y=-92x 2y=-5x 3y=64x 3y=-52x y=-92x 5y=93x 4y=-92x 2y=47x 5y=124x 5y=-84x 5y=93x 4y=-34x y=-74x 4y=7x y=222x 2y=4x 4y=5x y=-69x 8y=62x 3y=79x 8y=145x 4y=03x y=-24x 2y=87x 2y=-83x 3y=-1x 7y=5 5x 5y=3x 5y=-14x y=

8、-53x 6y=-93x 5y=-96x 3y=6x 3y=-14x 5y=-33x 3y=-27x 3y=-85x 5y=19x 7y=-204x y=-2x 2y=9x 2y=15x 8y=52x 2y=-62x 2y=143x 5y=92x 3y=-23x 2y=-86x 6y=-9x5y=94x 3y=22x 2y=33x y=65x 5y=05x 4y=72x 3y=-74x y=-35x 4y=3x 3y=15x y=97x 5y=75x 5y=-96x 4y=-143x 5y=6x 2y=3 4x 3y=-64x 3y=-94x 4y=35x y=26x 3y=95x 2y=15

9、x 3y=-59x 3y=6x5y=-7x 2y=-92x 2y=83x 2y=12x 5y=72x 5y=-24x 2y=12x y=-165x 5y=-95x 3y=13x 5y=-48x y=-6x4y=-15x 3y=-123x 2y=62x 2y=-62x 5y=-24x y=-45x y=-3x2y=-7x y=-4x 4y=-12x y=87x 5y=4x4y=25x 7y=-203x 3y=75x 2y=-55x 4y=93x 7y=-125x y=84x 3y=-64x 5y=74x 3y=-34x 2y=-64x 7y=4x y=-89x y=-212x 5y=-94x 4

10、y=7x 2y=-53x 9y=-64x 5y=-42x 8y=163x 3y=17x 2y=65x 5y=-54x 4y=-34x 3y=-54x y=16x y=15x y=12x 3y=44x 5y=82x 2y=-23x y=-24x 3y=04x 5y=1 42xx 35yy=-15x5y=-23x 5y=56x 6y=65x 5y=-14x 3y=-64x y=73x y=-44x y=82x y=12x 5y=-72x 5y=-3x 4y=03x 5y=62x y=-1x 5y=8 2x 3y=53x 2y=9x 2y=43x 2y=-65x 5y=59x 6y=112x 2y=

11、-4x 2y=94x y=76x y=14x 3y=-83x 6y=102x y=-53x y=45x 3y=94x 8y=-34x y=53x 2y=255x 4y=-12x 3y=-3x 2y=9x2y=62x y=77x 8y=-193x 4y=-44x y=83x 3y=-79x y=43x 4y=-58x 2y=-302x 5y=-53x y=-8x y=73x 8y=-93x 5y=-6x3y=285x 4y=-19x 4y=93x 5y=03x y=-53x 3y=-4x 9y=185x 3y=74x y=-95x 5y=-96x 7y=-13x 2y=-42x 5y=154x 5y=-