Numbering equations in tabular environment

Question

I wish to number equations in a table, like numbering them in

\begin{equation}.
    ...
\end{equation} 

Since all the equations are written as "inline" equations (for example, $a = b+c$) in tabular environment, I have no idea how to number them. Can you help me to find out a way?

Answer 1

I answered a similar question at the German community MrUnix:

Here the code:

\documentclass[11pt,a4paper]{scrreprt} 
\usepackage{amsmath, amssymb, tabularx}
\usepackage{lipsum}
\usepackage{hyperref}
\newcommand{\tagarray}{%
\mbox{}\refstepcounter{equation}%
$(\theequation)$%
}

\begin{document}
\begin{equation}
1+1=2\label{1}
\end{equation}

\noindent\begin{tabularx}{\linewidth}{@{}lrcl>{\raggedleft\arraybackslash}X@{}}
Anode: & $\frac{1}{2}O_{2}+2e^{-}$ & $\longrightarrow$ & $O^{2-}$ & \tagarray\label{2}\\
Kathode: & $H_{2}+O^{2-}$ & $\longrightarrow$ & $H_{2}O+2e^{-}$ &\tagarray\label{3}\\
Gesamtreaktion: & $H_{2}+\frac{1}{2}O_{2}$ & $\longrightarrow$ & $H_{2}O$ &\tagarray\label{4}
\end{tabularx}

\begin{equation}
1+1=2\label{5}
\end{equation}
\lipsum[1]
\ref{1}\qquad\ref{2}\qquad\ref{3}\qquad\ref{4}\qquad\ref{5}
\end{document}