<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%%%%%%%%%%%%%%%%%%%%%%%
%% Copyleft
%% Walter A. Kehowski
%% Department of Mathematics
%% Glendale Community College
%% walter.kehowski@gcmail.maricopa.edu
%% \begin{linsys}{2}
%% -x &amp; + &amp; 4y &amp; = &amp; 8\\
%% -3x &amp; - &amp; 2y &amp; = &amp; 6
%% \end{linsys}
%%%%%%%%%%%%%%%%%%%%%%%
\RequirePackage{array} % TLC p465
\RequirePackage{pifont}
\makeatletter
%% math-mode column types ------------------
\newcolumntype{\@R}{&gt;{$}r&lt;{$}}
\newcolumntype{\@L}{&gt;{$}l&lt;{$}}
\newcolumntype{\@C}{&gt;{$}c&lt;{$}}
\newcounter{@dingctr}
\newcommand{\@wding}{\ding{\value{@dingctr}}\stepcounter{@dingctr}}
\newcommand{\@dinglabel}{\@wding}
\newenvironment{linsys}[1]{%
\setcounter{@dingctr}{192}%
\begin{tabular}{!{\@dinglabel}*{#1}{\@R\@C}\@R}}%
{\end{tabular}\setcounter{@dingctr}{192}}
\makeatother
\endinput
</pre></body></html>