二元一次方程组计算题100题

1.2x+9y=816.x+2y=213x+y=343x+5y=562.9x+4y=357.5x+7y=528x+3y=305x+2y=223.7x+2y=528.5x+5y=657x+4y=627x+7y=2039.8x+4y=564.4x+6y=54x+4y=219x+2y=875.2x+y=710.5x+7y=412x+5y=195x+8y=4411.7x+5y=5416.9x+7y=1353x+4y=384x+y=4112.x+8y=1517.3x+8y=514x+y=29x+6y=2713.3x+6y=2418.9x+3y=999x+5y=464x+7y=9514.9x+2y=6219.9x+2y=384x+3y=363x+6y=1815.9x+4y=4620.5x+5y=457x+4y=427x+9y=6921.8x+2y=2826.6x+6y=487x+8y=626x+3y=4222.x+6y=1427.8x+2y=163x+3y=277x+y=1123.7x+4y=672x+8y=2628.4x+9y=778x+6y=9424.5x+4y=527x+6y=7429.6x+8y=687x+6y=6625.7x+y=930.2x+2y=224x+6y=167x+2y=4731.5x+3y=836.44x+10y=273x+5y=8x+y=137.8x-y=032.6x-7y=5x+y=18x+2y=438.11x-y=1233.10x-8y=1411y-x=-12x+y=534.4x+7y=339.5x+6y=27x+y=02x+3y=1240.7x-2y=435.3x+y=10x+2y=127x-y=20(2x+y)-5y=22x-5y=07x-3y=33x+2y=217x+2y=21y-6x=110x-8y=03x-2y=2

3x-2y=1x-y=3x+3y=-53x-4y=-2y-3x=2x-2y=65x+3y=22x-y=345.3x+y=1050.9x-3y=125x-7y=82x+y=651.2x+3y=756.3x-5y=23x+2y=32x-y=352.3x+2y=1857.4x-3y=18x+y=72x-y=858.x-2y=553.2x-5y=1x+3y=-5x+y=359.3x+y=754.x+8y=4422x+3y=75x+6y=48060.3x-2y=755.3x-2y=52x-3y=37x-4y=1161.23x+17y=6366.x+2y+2=017x+23y=577x-4y=-4162.x-y=267.x-3y+20=0x+1=2(y-1)3x+7y-100=063.x-5y=068.2x+y=13x+2y=173x-2y=-969.3x-4y+11=064.x+2=43y-4x+53=02(y-3)=670.4y=3x+465.3(y-2)=x-15y=4x+32(x-1)=5y-87x-3y+1=04x-5y=-173x-y-3=04x+3y=1773.x-y=32y+3(x-y)=1174.xy143x-4y=2

76.xy1133x+2y=10x177.2y32(x+1)-y=1178.2xy2y032(2x+y)-5=7y6x+6y=486x+3y=4275.

xy4

80.(2x+y)-5y=2433

2x-5y=03(x-4)=4(y+2)81.3x11y22x+y=282.xy44333(x-4)=4(y+2)2x-3y=-53x+2y=123x-2(x+2y)=311x+4(x+2y)=45x-2y=3y7

9x+2y=203x+4y=1087.1x1y25350.5x-0.3y=0.211x-9y=12-4x+3y=-53x+5y=66x+15y=163x-y-3=04x+3y=17521091.x+y=500

96.x1

167x50.7+0.9y=386x0.6y1292.5

2x-1=3y+397.x-2y=74x0.4y85x93.y1

1-3x=

y124x+4y=4xy