七年级下册二元一次方程纯计算题100题

七年级下册二元一次方程纯计算题100题七年级下册二元一次方程纯计算题100题141.2x+9y=813x+y=342. 9x+4y=358x+3y=30,3. 7x+2y=527x+4y=624. fx+6y=549x+2y=875. 2x+y=72x+5y=196. x+2y=213x+5y=567. 5x+7y=5215x+2y=228.5x+5y=65j7x+7y=2039.8x+4y=56x+4y=2110.5x+7y=415x+8y=4411.7x+5y=543x+4y=3；812.x+8y=154x+y=2913.px+6y=244+5y=4614.9x+2y=624x+3y=36*15.9x+4y=467x+4y=4216.px+7y=1354x+y=4117.3x+8y=51x+6y=2718.9x+3y=994x+7y=9519.*9x+2y=383x+6y=1820.5x+5y=47x+9y=6921.8x+2y=287x+8y=6221.gx+2y=287x+8y=6222.x+6y=143x+3y=2723.7x+4y=672x+8y=2624.px+4y=52东+6y=7425.7x+y=94x+6y=1626.6x+6y=486x+3y=4227.fex+2y=167x+y=1128.4x+9y=778x+6y=9429.6x+8y=687x+6y=6631.5x+3y=83x+5y=832.6x-7y=5x+2y=433.10x-8y=14x+y=534.4x+7y=3x+y=035.3x+y=10卜7x-y=2036.44x+10y=27x+y=137.8x-y=0x+y=1838.11x-y=1211y-x=-1239.px+6y=272x+3y=1240.7x-2y=4x+2y=1241.(2x+y)-5y=22x-5y=042.px-3y=33x+2y=2143.7x+2y=21y-6x=1:44.10x-8y=0:3x-2y=245.px+y=1057y=846.3x-2y=1x-y=347.y-3x=2-2y=648.(9x-3y=12?x+y=649.x+3y=-53x-4y=-2502x+3y=73x+2y=351 3x+2y=18x+y=752.2x-5y=1I53.x+8y=42x+y=3I3x-4y=-20543x-5y=22x-y=355、4x4x3y6y51456.xy457.3x2y62x3y172xy158.23x17y6359.13x16y060.3x2y117x23y5712x25y1034,2x3y861.x 2y i2562.Rx+9y=8133x+y=3463x15(y2)3(2x5)4(3y4)5x242(y3)6653x 2y 473x 2y 1967、x y 85x 2(x y) 168. 4x+6y=54I9L+2y=8766.J5x+7y=525x+2y=2269、5x 2y 83x y 770j5x+5y=657x+7y=20367j2x+y=72x+5y=1975.18x+23y=23034x+90y=779668(x+2y=213x+5y=567的7x+54y=854671x-y=568077.42x-95y=-141021x-y=15757牛47x-40y=853*34x-y=200679f19x-32y=-178675x+y=495073.9x+3y=9918x+23y=230380.97x+24y=720258x-y=290084.80x-87y=215622x-y=88081.42x+85y=636263x-y=163885.32x+62y=513457x+y=285082|85x-92y=-251827x-y=48686.3x-49y=8259x+y=218374jfe6x+17y=396725x+y=1200871383j79x+40y=241956x-y=1176885x2y11a（a为已知数）；4x4y6a89、xy2xy23x4y5.1xyz1393、yzx1;zxy390、x(y1)y(1x)22x(x1)yx0xy1694、yz12；zx1091、3x y 4z 1395、5x y 3z 5 ；x y z 33x3y3x2y25.3(2x3y)2(3x2y)2523692、x2y132x21y3296、x2y3z3097xy10x3y2xy1099y3x298xy10y3x2xy10100x3y2