<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  Ein Beispiel der DANTE-Edition
%%  Mathematiksatz mit LaTeX
%%  3. Auflage
%%  Beispiel 09-14-1 auf Seite 184.
%%  Copyright (C) 2018 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[10pt]{screxa}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\setcounter{equation}{5}
\renewcommand\theequation{9.\arabic{equation}}
%StartShownPreambleCommands
\usepackage{amsmath,empheq,xcolor,graphicx}
\newcommand*\mycolbox[1]{%
  \colorbox{blue!30!yellow!40}{\hspace{1em}#1\hspace{1em}}}
%StopShownPreambleCommands
\begin{document}
\begin{subequations}
\begin{empheq}[% Beginn der Optionen
    box=\mycolbox,
    right={\;\makebox[.9em]{$\raisebox{-.5\totalheight+\fontdimen22\textfont2}
              {\resizebox{!}{\EmphEqdisplayheight+\EmphEqdisplaydepth}{!}}$}},
    left={X=Y\Rightarrow\empheqlbrace}]{alignat=3}
%
    A_1&amp;=b_1 &amp; \qquad c_1&amp;=d_1 &amp; \qquad e_1&amp;= f_1
         \tag*{\_A\raisebox{1ex}{silly}\raisebox{-1ex}{tag}\_}\\
    A_2&amp;=b_2 &amp; \qquad c_2&amp;=d_2 &amp; \qquad  e_2&amp;= f_2 \\
    A_3&amp;=b_3 &amp; \qquad c_3&amp;=d_3 &amp; \qquad  e_3&amp;= f_3
\end{empheq}
\end{subequations}
\end{document}
</pre></body></html>