七年级数学下册方程组练习题

二元一次/三元一次方程组练习-1-2x+9y=819x+4y=353x+y=348x+3y=307x+2y=52x+2y=217x+4y=623x+5y=564x+6y=542x+y=79x+2y=872x+5y=195x+7y=525x+5y=655x+2y=227x+7y=203二元一次/三元一次方程组练习-2-8x+4y=56x+8y=15x+4y=214x+y=295x+7y=417x+5y=545x+8y=443x+4y=383x+6y=249x+2y=629x+5y=464x+3y=369x+4y=469x+3y=997x+4y=424x+7y=95二元一次/三元一次方程组练习-3-9x+7y=133x+8y=514x+y=41x+6y=279x+2y=385x+5y=453x+6y=187x+9y=698x+2y=285x+4y=527x+8y=627x+6y=74x+6y=147x+4y=673x+3y=272x+8y=26二元一次/三元一次方程组练习-4-7x+y=96x+6y=484x+6y=166x+3y=428x+2y=166x+8y=687x+y=117x+6y=664x+9y=772x+2y=228x+6y=947x+2y=472x+7y-z=24x+y+z=74x-4y+z=-32x+y-z=5x+y=5x-y-2z=4二元一次/三元一次方程组练习-5-a+b+c=05x-4y+4z=134a+2b+c=32x+7y-3z=199a-3b+c=283x+2y-z=18a+b+c=-23x-y+z=3a-b+c=202x+y-3z=11a+b=0x+y+z=12a+b+c=-4x-2y-3z+18=049a+7b+c=8x+3y-2z-8=025a+5b+c=0x+y+2z-24=0二元一次/三元一次方程组练习-6-x+y=3x+y+z=122x-y+2z=2x+2y-z=6x-y-z=-33x-y+z=102x+3y=62a+b+c=0x-y+2z=-14a+2b+c=5x+2y-z=52a-b+c=43x-y+z=4x+y-z=5x+y+z=62x+3y+z=102x+3y-z=12x-2y-z=10二元一次/三元一次方程组练习-7-x+y+z=6x-y-5z=4x-y=12x+y-3z=102x-y+z=53x+y+z=83x-y+2z=33x+2y+5z=22x+y-3z=11x-2y-z=6x+y+z=124x+2y-7z=30x+2y+3z=14x-y+z=12x+y+z=73x+y-2z=23x+y+2z=11x+2y-z=3二元一次/三元一次方程组练习-8-x+2y+3z=5x+y+z=62x+3y+6z=92x+3y+z=115x+3y+9z=153x-y-z=-23x-y+z=4x+2y+z=22x+3y-z+12x-4y+z=5x+y+z=62x-2y-5z=0