\documentstyle[fleqn,11pt]{article}  % fleqn just indents the displays
\pagestyle{empty}                    % plain gives numbering of pages
\setlength{\parindent}{0in}          % .2in or .3 in or any indent you want
\setlength{\parskip}{8pt}            % extra space between paragraphs
\setlength{\mathindent}{18pt}        % amount to indent displays
\setlength{\oddsidemargin}{0in}      % -.25in makes wider magrins, e.g.
\setlength{\textwidth}{6.5in}        % Change this when changing oddsidemargin
\setlength{\topmargin}{0in}          % -.5in makes top margin higher
\setlength{\textheight}{9in}         % Change this when changing topmargin
\renewcommand{\baselinestretch}{1.0} % Change this to 1.5 or whatever

\begin{document}




\end{document}