From 584ddd77de8783be5b109eb936464b417924ea33 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=B5=B5=E9=91=AB?= <7176466@qq.com>
Date: Fri, 12 Aug 2022 19:32:49 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9?=
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---
 问题/鸡兔同笼.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/问题/鸡兔同笼.md b/问题/鸡兔同笼.md
index 51b2827..9be2564 100644
--- a/问题/鸡兔同笼.md
+++ b/问题/鸡兔同笼.md
@@ -32,7 +32,7 @@
 
 解： 设鸡有$x$只, 兔有$y$只，则：
 
-$ \begin{cases}
+$$ \begin{cases}
 x+y=35\\
 2x+4y=94
-\end{cases} $
+\end{cases} $$