二元一次方程练习
题
快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题
及
答案
八年级地理上册填图题岩土工程勘察试题省略号的作用及举例应急救援安全知识车间5s试题及答案
xy,,21x,,1,,1. 解得: ,,y,,327xy,,,,,
yx,3x,,2,,2. 解得: ,,y,,65520xy,,,,,
7,x,,xy,,54,,33. 解得: ,,1365xy,,,,y,,3,
xy,,4x,3,,4. 解得: ,,25xy,,y,,1,,
xy,,4x,5,,5. 解得: ,,y,1316xy,,,,
mn,,,31m,2,,6. 解得: ,,n,,1328mn,,,,
2()1xyxy,,,x,2,,,,,7. 解得: 3412,,y,1,,3()2(2)3xyxy,,,,,
x,134xy,,,,8. 解得: ,,y,121xy,,,,
xy,,26x,1,,9. 解得: ,,y,2.5(2)(24)192xyxy,,,,,
17,x,3()4()4xyxy,,,,,,,,1510. 解得: ,xyxy,,,11,,1,,y,26,,15,
7,x,,xy,,4,,611. 解得: ,,17421xy,,,,,y,,6,
9220xy,,x,2,,12 解得: ,,y,13410xy,,,,
xy,x,6,,1,,13 解得: 34,,y,4,,342xy,,,
xy,,1x,3,,14 解得: ,,xy,,39y,,2,,23xy,,x,2,,15 解得: ,,y,1328xy,,,,
xy,,20x,2,,16 解得: ,,y,1328xy,,,,
yx,,23x,1,,17 解得: ,,321xy,,y,,1,,753xy,,x,,1,,18 解得: ,,y,224xy,,,,,
56,x,,xy,,56,,2119 解得: ,,143640xy,,,,,y,,,21
ab,,28a,2,,20 解得: ,,b,327ab,,,,
xy,,1x,2,,21 解得: ,,23xy,,y,,1,,
6,x,,,235xy,,,,,522 解得: ,,393212xy,,,,y,,5,
7,x,,xy,,4,,623 解得: ,,17421xy,,,,,y,,,6,
9220xy,,x,2,,24 解得: ,,y,13410xy,,,,
145,314426xy,,,,,,x,,,,,,,,25 解得: 3,,5135yx,,,,,,,,,,y,,33,
24xy,,x,1,,26 解得: ,,y,2xy,,25,,
2981xy,,x,9,,27 解得: ,,y,7334xy,,,,
27xy,,x,2,,28 解得: ,,y,32519xy,,,,
8456xy,,x,5,,29 解得: ,,y,4xy,,421,,
xy,,815x,7,,30 解得: ,,429xy,,y,,1,,xy,,,31x,2,,31 解得: ,,328xy,,y,,1,,
x,123xy,,,,32 解得: ,,y,1xy,,0,,
327xy,,x,1,,33 解得: ,,y,2238xy,,,,
35xy,,x,9.2,,34 解得: ,,520.8xy,,y,22.6,,
1,xy,,0.1x,0,,35 解得: 2,,y,0,,450.2xy,,,
26,3414xy,,x,,,36 解得: 3,,31541xy,,,,y,3,