更新
This commit is contained in:
parent
03e465c553
commit
c5e69f07ac
@ -8,7 +8,7 @@
|
|||||||
|
|
||||||
$
|
$
|
||||||
\begin{aligned}
|
\begin{aligned}
|
||||||
a - x &= b + x &(a \in \Bbb{N}, b \in \Bbb{N}, a>b) \\\\
|
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}
|
||||||
|
Loading…
Reference in New Issue
Block a user