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赵鑫 2022-08-12 18:14:12 +08:00
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# 均贫富
```
明明的邮票枚数============================= 29
大力的邮票枚数========= 9
明明的邮票:============================= 29
小强的邮票========= 9
```
$自然数范围内有a>b且a-x=b+x求x。$
$ a - x = b + x \space (a \in \mathbb{N}, b \in \mathbb{N}, a>b) $
## 解法1
$\because a-x=b+x \Longrightarrow 2x=a-b$
$ 2x = a - b \space (移项并交换等式两侧)$
$\therefore x=\frac{a-b}{2}$
$ x=\frac{a-b}{2} \space (等式两侧同除以2)$
## 解法2