修改

2022-08-12 20:44:27 +08:00 · 2022-08-12 20:44:27 +08:00 · 391986d7db
commit 391986d7db
parent d780d0c626
1 changed files with 1 additions and 5 deletions
--- a/问题/鸡兔同笼.md
+++ b/问题/鸡兔同笼.md
@ -33,11 +33,7 @@ $ \begin{cases}x &+ &y &= 35 \newline 2x &+ &4y &= 94 \end{cases} $

 $ x = 35-y $

-$ (35-y) \times 2 + 4y = 94 $
-
-$ 2y = 24 $
-
-$ y = 12$
+$ \begin{aligned}(35-y) \times 2 + 4y &= 94 \newline 2y &= 24 \newline y &= 12 \end{aligned}$

 $ x = 35 - y = 23$