二元一次方程組計(jì)算題100題319

實(shí)用標(biāo)準(zhǔn)1.2x+9y=813x+y=346.x+2y=213x+5y=562.9x+4y=358x+3y=307.5x+7y=525x+2y=223.7x+2y=527x+4y=628.5x+5y=657x+7y=2034.4x+6y=549x+2y=879.8x+4y=56x+4y=215.2x+y=72x+5y=1910.5x+7y=415x+8y=44精彩文檔實(shí)用標(biāo)準(zhǔn)7x+4y=4211.7x+5y=543x+4y=3816.9x+7y=1354x+y=4112.x+8y=154x+y=2917.3x+8y=51x+6y=2713.3x+6y=249x+5y=4618.9x+3y=994x+7y=9514.9x+2y=624x+3y=3619.9x+2y=383x+6y=1815.9x+4y=46精彩文檔實(shí)用標(biāo)準(zhǔn)20.5x+5y=457x+9y=6925.7x+y=94x+6y=1621.8x+2y=287x+8y=6226.6x+6y=486x+3y=4222.x+6y=143x+3y=2727.8x+2y=167x+y=1123.7x+4y=672x+8y=2628.4x+9y=778x+6y=9424.5x+4y=527x+6y=7429.6x+8y=687x+6y=66精彩文檔實(shí)用標(biāo)準(zhǔn)30.2x+2y=227x+2y=4735.3x+y=107x-y=2031.5x+3y=83x+5y=836.44x+10y=27x+y=132.6x-7y=5x+2y=437.8x-y=0x+y=1833.10x-8y=14x+y=538.11x-y=1211y-x=-1234.4x+7y=3x+y=039.5x+6y=27精彩文檔實(shí)用標(biāo)準(zhǔn)2x+3y=1244.10x-8y=03x-2y=240.7x-2y=4x+2y=1245.3x+y=105x-7y=841.(2x+y)-5y=22x-5y=046.3x-2y=1x-y=342.7x-3y=33x+2y=2147.x+3y=-53x-4y=-243.7x+2y=21y-6x=148.y-3x=2x-2y=6精彩文檔實(shí)用標(biāo)準(zhǔn)54.x+8y=4425x+6y=48049.5x+3y=22x-y=350.9x-3y=122x+y=655.3x-2y=57x-4y=1151.2x+3y=73x+2y=356.3x-5y=22x-y=352.3x+2y=18x+y=757.4x-3y=182x-y=853.2x-5y=1x+y=358.x-2y=5x+3y=-5精彩文檔實(shí)用標(biāo)準(zhǔn)59.3x+y=72x+3y=764.x+2=42(y-3)=660.3x-2y=72x-3y=365.3(y-2)=x-12(x-1)=5y-861.23x+17y=6317x+23y=5766.x+2y+2=07x-4y=-4162.x-y=2x+1=2(y-1)67.x-3y+20=03x+7y-100=063.x-5y=03x+2y=1768.2x+y=13x-2y=-9精彩文檔實(shí)用標(biāo)準(zhǔn)69.3x-4y+11=03y-4x+53=0xy74.1343x-4y=270.4y=3x+45y=4x+3xy475.4333(x-4)=4(y+2)xy1171.7x-3y+1=04x-5y=-1776.233x+2y=1077.x1372.3x-y-3=04x+3y=172y2(x+1)-y=112xy2y073.x-y=378.32y+3(x-y)=11精彩文檔實(shí)用標(biāo)準(zhǔn)2(2x+y)-5=7y83.2x-3y=-53x+2y=1279.6x+6y=486x+3y=4284.3x-2(x+2y)=311x+4(x+2y)=4580.(2x+y)-5y=22x-5y=085.x-2y=3xy7521081.3x12y186.9x+2y=203x+4y=102x+y=2xy482.433112587.5x3y3(x-4)=4(y+2)0.5x-0.3y=0.2精彩文檔實(shí)用標(biāo)準(zhǔn)88.11x-9y=12-4x+3y=-593.xy14x+4y=489.3x+5y=66x+15y=16xy9294.xy63290.3x-y-3=04x+3y=1795.3x+5y=198x-3y=6796.x1167x91.x+y=5000.7+0.9y=38652x-1=3y+3x0.6y1292.597.x-2y=7y145x0.4y