(完整版)七年级下册二元一次方程纯计算题100题.docx

七年级下册二元一次方程纯计算题 100题1.*x+9y=81*+y=+4y=35"8x+3y=+2y=527x+4y=+6y=549x+2y=+y=72x+5y=+2y=213x+5y=+7y=525x+2y=+5y=65(7x+7y=+4y=56x+4y=+7y=415x+8y=+5y=5”3x+4y=+8y=154x+y=293x+6y=24斗+5丫=469x+2y=624x+3y=36'9x+4y=467x+4y=4216.”x+7y=1354*+y=+8y=51x+6y=27 '+3y=994x+7y=+5y=47x+9y=+2y=287x+8y=+2y=383x+6y=18*3x+2y=287k+8y=62x+6y=143x+3y=277x+4y=672x+8y=+y=94x+6y=+6y=486x+3y=42px+4y=527^+6y=74fex+2y=167x+y=114x+9y=778x+6y=946x+8y=687x+6y=+3y=83x+5y=-7y=5x+2y=+7y=3x+y=+y=107x-y=-8y=14斗Ix+y=+10y=27x+y=-y=0x+y=-y=1211y-x=-+6y=272k+3y=-2y=4x+2y=1241.(2x+y)-5y=22x-5y=-3y=33x+2y=+2y=21y-6x=1:-8y=0:3x-2y=+y=105x-7y=-2y=1x-y=-3x=2-2y=648.(9x-3y=12*2x+y=+3y=-53x-4y=-2* 502x+3y=73x+2y=3513x+2y=18[+y=-5y=1x+y=+8y=423x-4y=-20543x-5y=22t-y=355、+9y=813[x+y=3463x1 5(y2)3(2x5)4(3y 4) 564653x2y473x2y1967、 xy85x2(xy)15x2y869、3xy72(y3)+7y=525x+2y=+6y=54I9x+2y=8770j5x+5y=657x+7y=203