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赵鑫 2022-08-12 19:32:49 +08:00
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问题/鸡兔同笼.md
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@ -32,7 +32,7 @@
解： 设鸡有$x$只, 兔有$y$只，则： 解： 设鸡有$x$只, 兔有$y$只，则：
$ \begin{cases} $$ \begin{cases}
x+y=35\\ x+y=35\\
2x+4y=94 2x+4y=94
\end{cases} $ \end{cases} $$