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赵鑫 2022-08-16 13:57:43 +08:00
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问题/均贫富.md
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## 解法1 ## 解法1
$ $
a - x = b + x \quad (a \in \Bbb{N}, b \in \Bbb{N}, a>b) \\\\
\begin{aligned} \begin{aligned}
a - x &= b + x &(a \in \Bbb{N}, b \in \Bbb{N}, a>b) \\\\
2x &= a - b &(移项并交换等式两侧) \\\\ 2x &= a - b &(移项并交换等式两侧) \\\\
x &= \dfrac{a-b}{2} &(等式两侧同除以2) x &= \dfrac{a-b}{2} &(等式两侧同除以2)
\end{aligned} \end{aligned}