From 321a09da170b4388186df5ecbf27a5f91495596b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E8=B5=B5=E9=91=AB?= <7176466@qq.com> Date: Tue, 16 Aug 2022 13:56:50 +0800 Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 问题/均贫富.md | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/问题/均贫富.md b/问题/均贫富.md index 505385f..5b9948a 100644 --- a/问题/均贫富.md +++ b/问题/均贫富.md @@ -1,17 +1,13 @@ # 均贫富 -``` -明明:🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎 18个 -小强:🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎 12个 - -问:明明给小强几个苹果后两个人的苹果就一样多了? -``` - -$ a - x = b + x \quad (a \in \Bbb{N}, b \in \Bbb{N}, a>b) $ + 姐姐:🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎 16个 + 弟弟:🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎 10个 + 问题:姐姐给弟弟几个苹果后两个人的苹果就一样多了? ## 解法1 $ +a - x = b + x \quad (a \in \Bbb{N}, b \in \Bbb{N}, a>b) \\\\ \begin{aligned} 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)