人教版七年级数学下册二元一次方程组练习题271.docx
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人教版七年级数学下册二元一次方程组练习题271
x+2y=-94x-8y=-79x-4y=26
{{{
x-4y=05x+y=-13x+4y=-5
3x-3y=48x+7y=56x+6y=26
{{{
5x+5y=-43x-3y=73x+3y=-3
4x-4y=-77x+6y=-66x+4y=22
{{{
2x-5y=4x-2y=-4x+5y=-8
2x+4y=64x+y=12x-7y=-27
{{{
2x-y=05x-4y=-24x+y=4
3x-3y=-38x-6y=-39x+4y=-21
{{{
2x-3y=-2x+y=-1x+5y=8
5x+4y=0x+9y=95x-2y=-2
{{{
x+4y=43x-2y=54x-y=-3
4x-y=-85x+5y=-5x-7y=-25
{{{
3x+4y=35x-3y=45x-4y=0
x+3y=-36x-2y=-53x-y=-16
{{{
x+4y=95x+4y=03x+4y=-2
2x-4y=8x-8y=-55x-y=2
{{{
4x+2y=-13x+y=52x+y=7
2x+y=-86x-4y=-35x-y=0
{{{
4x+3y=-73x-y=42x-2y=-8
x+4y=-28x+8y=-4x-5y=19
{{{
4x+2y=-3x-2y=-94x-5y=6
x-y=1x+4y=-12x-4y=14
{{{
3x-y=35x+3y=-9x-4y=9
3x+4y=37x+8y=-22x-5y=16
{{{
x-5y=85x+2y=-32x+3y=-2
3x-2y=-86x+y=-36x+3y=-26
{{{
x-2y=65x-5y=85x-5y=-6
4x-4y=-18x-7y=39x+6y=30
{{{
4x+3y=25x+5y=42x+2y=0
2x+y=-5x+5y=-5x-9y=10
{{{
3x+3y=54x-y=1x-4y=-4
4x-y=43x+5y=-1x+7y=26
{{{
2x+5y=-3x-2y=53x+y=-8
3x-4y=-73x+7y=26x-7y=23
{{{
2x-y=-2x-5y=23x-5y=8
4x-2y=-8x+y=-52x+8y=-5
{{{
3x-2y=54x+y=-33x+5y=-3
x-y=99x+2y=35x-3y=-27
{{{
5x+3y=43x-y=-42x+3y=0
4x-5y=08x-2y=73x-8y=-16
{{{
3x+3y=-83x-5y=25x+5y=7
x-y=-88x+9y=-96x-7y=19
{{{
x-y=-84x+2y=7x-4y=8
2x+y=-62x-5y=-63x-6y=23
{{{
4x-y=-95x+3y=65x-3y=6
3x+5y=98x-8y=82x+9y=10
{{{
2x+3y=62x+3y=25x+3y=9
3x+4y=85x+2y=-63x+7y=20
{{{
2x-3y=-24x-3y=35x-5y=-6
2x+4y=83x+6y=99x-9y=21
{{{
5x+5y=-83x-y=15x-4y=-4
x-5y=35x+9y=05x+y=-8
{{{
3x-5y=-7x+3y=92x+y=-4
4x+3y=08x+y=58x-2y=18
{{{
x+2y=04x-2y=53x-5y=4
3x+3y=48x+y=36x+8y=6
{{{
4x+4y=43x+5y=0x-3y=1
5x+5y=19x+5y=-74x-5y=3
{{{
5x+2y=4x+3y=-83x+4y=2
4x-y=56x-7y=33x-4y=4
{{{
x+y=-92x-y=75x+3y=-7
5x+4y=-94x-5y=-84x-2y=-15
{{{
4x-3y=-24x+3y=82x+y=3
5x-3y=95x-7y=-55x-6y=14
{{{
3x-5y=-45x-4y=1x-4y=2
x+5y=-7x+2y=64x-7y=3
{{{
x+3y=35x-5y=03x+2y=6
x-2y=-58x+7y=39x+3y=-27
{{{
2x+2y=85x-3y=9x+4y=1
x-5y=75x-3y=-73x+3y=-23
{{{
5x-4y=-64x-y=-53x+y=4
4x-2y=-93x-9y=22x+3y=-20
{{{
x+2y=-32x-2y=-83x-2y=9
2x-4y=48x+4y=-84x-7y=18
{{{
4x-3y=65x+4y=-14x+2y=-7
2x+5y=-77x-3y=-62x-y=23
{{{
5x+3y=44x+y=3x+5y=0
5x-2y=84x+5y=29x-4y=30
{{{
x-5y=9x+3y=-45x-5y=-9
3x-y=-63x+7y=-7x+8y=-27
{{{
x-3y=64x+4y=54x-5y=0
2x+5y=-16x+7y=87x+6y=10
{{{
4x-5y=54x+3y=94x+5y=8
3x-2y=-8x+8y=-39x-4y=27
{{{
3x-4y=15x+y=32x-5y=-8
5x+2y=-37x+3y=18x-2y=11
{{{
x+2y=-63x+2y=93x+y=3
3x+3y=16x-3y=74x+8y=5
{{{
5x+3y=-55x+3y=33x-3y=-8
3x+2y=49x-y=-16x-8y=-6
{{{
x-y=7x+5y=-1x+3y=9
3x-2y=-39x-8y=95x-4y=-6
{{{
3x-3y=-23x-2y=-65x-3y=4
x-y=-84x-3y=-24x-5y=12
{{{
5x-y=-72x-3y=02x+3y=7
5x+3y=06x-3y=-66x-7y=26
{{{
2x-2y=-8x-y=-83x+5y=8
3x-3y=-48x+y=-67x-4y=-4
{{{
2x+5y=-83x+3y=0x-2y=4
4x+2y=83x+7y=3x-6y=10
{{{
4x-3y=-14x+4y=-23x+3y=8
5x+y=43x+5y=46x+6y=25
{{{
3x-4y=-52x+4y=45x-4y=1
2x+2y=69x-5y=-23x-5y=28
{{{
5x+2y=92x-y=42x-3y=5
x-y=54x+4y=35x-6y=-5
{{{
3x-4y=-53x+3y=83x+3y=-1
3x-4y=54x+y=99x+6y=11
{{{
2x-5y=-42x+2y=3x-3y=-3
x-3y=44x+6y=54x-3y=-11
{{{
x-2y=-74x+y=43x-y=-7
4x-y=64x+4y=12x-8y=22
{{{
3x+y=-75x+4y=-23x+3y=8
x-2y=3x-2y=-15x-y=14
{{{
3x+2y=03x-3y=-22x-3y=8
x-y=-2x+y=7x+y=8
{{{
x-5y=24x-3y=-93x+4y=8
5x-2y=-83x-4y=43x+8y=-2
{{{
5x-2y=83x-y=02x-y=-2
5x+3y=-19x+y=39x-2y=13
{{{
3x+2y=14x-2y=-35x-y=-8
3x-y=42x-7y=-3x+y=-13
{{{
4x-4y=-15x-4y=6x+2y=5
3x+2y=-62x+4y=17x+8y=-1
{{{
2x+y=-93x+y=22x+y=0
4x+y=87x+4y=23x-2y=-20
{{{
5x+3y=34x-3y=82x+4y=-2
x+3y=58x-6y=52x+y=20
{{{
5x-y=-8x-3y=-7x+y=3
3x-3y=77x+5y=-92x-4y=-14
{{{
2x+5y=7x+5y=-94x-4y=4
4x+y=-17x-5y=-67x+7y=-18
{{{
5x-2y=-6x+2y=-25x-4y=-2
2x-4y=-47x-4y=47x-5y=8
{{{
3x+3y=-15x-4y=04x+2y=6
4x-5y=77x-6y=-86x+9y=-19
{{{
3x-3y=35x-3y=83x+y=1
3x-3y=-57x+5y=-39x-2y=-7
{{{
5x+5y=14x-4y=3x-y=-1
3x+5y=09x+8y=-72x-9y=-19
{{{
3x+2y=65x-y=-72x+3y=9
4x+4y=4x-5y=-94x+8y=22
{{{
2x-3y=-12x-y=-55x-2y=6
2x-5y=02x-5y=-49x+6y=-18
{{{
3x+4y=84x-4y=04x-y=2
5x-y=62x+9y=-66x+y=-24
{{{
3x+5y=65x+y=-9x-4y=5
x+3y=-17x-6y=-53x-8y=5
{{{
4x-5y=23x-5y=14x+3y=-9
x+2y=08x-9y=95x+8y=-18
{{{
5x+2y=-82x+4y=-42x-y=-7
5x+3y=-54x+2y=87x-4y=23
{{{
3x+3y=-8x+3y=35x-4y=3
4x+5y=-85x-9y=-12x-3y=0
{{{
5x+3y=4x-3y=-84x-5y=-4
2x-2y=-5x+8y=62x+4y=4
{{{
x-3y=-62x+5y=-14x+4y=9
2x+3y=1x-y=44x-4y=-24
{{{
4x+4y=-22x+y=34x+3y=4