There are 23 duks and pigs,and the total number of legs of ducks ang pigs is 74.How many duks and pigs representatively?再给个答案,

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There are 23 duks and pigs,and the total number of legs of ducks ang pigs is 74.
How many duks and pigs representatively?再给个答案,

共有23只鸭子和猪,总共有74条腿,那么鸭子和猪分别有几只?
设x个鸭子,y个猪
x+y=23
2x+4y=74
计算得:9只鸭子,14只猪

鸡兔同笼

一共有23只鸭子和猪, 合起来有74只脚。 鸭子和猪各有几只?
9只鸭,14只猪

鸭子和猪的总数为23只,鸭子和猪的腿的总数为74,。问,鸭子和猪分别有多少只?
答案:鸭子9只,猪14只。