%% %% Ein Beispiel der DANTE-Edition %% %% %% Copyright (C) 2010 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. %% %% %%Run also: >> << % Show page(s) 1 %% \documentclass[]{article} \pagestyle{empty} \setlength\textwidth{352.81416pt} \setlength\parindent{0pt} \usepackage{amsmath,xcolor} \begin{document} \begin{flalign*} && \color{red}12(x-1)+20(y-3)+14(z-2) &= 0\\ \text{\color{blue}Ausmultiplizieren und Umstellen ergibt: } && \boxed{6x+10y+7z-50} &= 0 \end{flalign*} \end{document}