\documentclass{article}

\includeonly{delequ-slave-old}

\begin{document}
\textbf{delequ}
\include{delequ-slave-old}


\textbf{delequ2}
\include{delequ2-slave-old}

\textbf{eqnarray}
\input{eqnarray-slave-old}

\end{document}

