The following example uses environment tabular* to simulate the equations and to achieve the alignment requests:

\documentclass{article}
\usepackage{amsmath}
\usepackage{array}
\begin{document}
\noindent A\hfill Z

\begin{center}
\begin{tabular*}{\linewidth}{%
  @{}l% description
  @{\extracolsep{\fill}}%
  &gt;{$\displaystyle}c&lt;{$}% simulate displayed equation
  &gt;{\refstepcounter{equation}\thetag\theequation}r@{}% equation number
}
this is my first equation:&amp; z = x &amp;\\
this is my second equation:&amp; z = x + y &amp;\\
\end{tabular*}
\end{center}

\noindent A\hfill Z
\end{document}



  


Left align equation description
Why are the walls in my architectural renders sloping and how do I fix this?


