I need referencing from an equation, such as:
\documentclass{article}
\usepackage{amssymb,amsmath}
\begin{document}
\begin{equation} \label{eq:1}
y+x=3
\end{equation}
some text \ref{eq:1} some text
\end{document}
will result in: 'some text Eq.(1) some text'. Not just number, but with Eq. or 'Equation' insert before the number in brackets.

\documentclass{...}and ending with\end{document}. – Feb 15 '15 at 15:26amssymbandamsmath, I suggest to use\eqref{eq:1}instead of\ref{eq:1}, but I can't reproduceEq.(1). There must be something in between – Feb 15 '15 at 15:33Eq.(1)? – Feb 15 '15 at 15:35