Environments 13
\begin{equation}
\begin{split} a &=b+c\\
&=e+f
\end{split}
\end{equation}
\begin{equation}
\begin{split} a &=b+c\\
&=e+f
\end{split}
\end{equation}
Comments
\begin{equation}
\begin{split} a &=b+c\\
&=e+f
\end{split}
\end{equation}
\begin{equation}
\begin{split} a &=b+c\\
&=e+f
\end{split}
\end{equation}