Habe die Befehle \begin{align} sowie \begin{aligned} sowie \begin{split} scho ausprobiert. Hier ist mein Latex-Dokument:
\documentclass[bibliography=totoc,12pt]{scrartcl} \usepackage[ngerman]{babel} \usepackage{amsmath} \usepackage{color} \usepackage{amsthm} \usepackage{amssymb} \usepackage{graphicx} \usepackage{tikz} \usepackage{here} \usepackage{colortbl} \usepackage[titletoc]{appendix} \usepackage[authoryear]{natbib} \usepackage[a4paper,left=3cm,right=2cm,top=2cm,bottom=2cm]{geometry} \usepackage{pgfplots} \usepackage{eurosym} \usepackage[justification=RaggedRight, singlelinecheck=false]{caption} \usepackage{tocstyle} \usepackage[nottoc, numbib,]{tocbibind} \usepackage{mathtools} \pgfplotsset{ compat=1.9, xlabel near ticks, ylabel near ticks} \usepackage{fancyhdr} \pagestyle{fancy} \fancyhf{} \fancyhead[L]{} \fancyhead[R]{} \fancyfoot[R]{} % Umdefinition pagestyle plain \fancypagestyle{plain} \fancyhf{} \fancyfoot[R]{\thepage} \renewcommand{\headrulewidth}{0pt} \renewcommand{\footrulewidth}{0pt} \usepackage{setspace} \onehalfspacing \newcommand{\bs}{\verb|\|} \newtheorem{assumption}{Assumption} \newtheorem{proposition}{Proposition} \newtheorem{corollary}{Corollary} \newtheorem{definition}{Definition} \newtheorem{theorem}{Theorem} \newtheorem{hypothesis}{Hypothesis} \newtheorem{algorithm}{Algorithm} \bibliographystyle{authordate1} \date{} \usepackage[utf8]{inputenc} \setcounter{secnumdepth}{4} \setkomafont {disposition}{\normalfont\bfseries} \begin{document} \begin{equation*} s.d.\qquad C_{At}^S+p_{Bt}C_{Bt}^S+q_t^h\Bigl[(1-\tau_h)(1+VAT)(H_t^S-(1-\delta)H_{t-1}^S+(H_t^Z-(1-\delta)H_{t-1}^Z)\Bigl]+b_t+d_t=(1-\tau_{wt})(w_{ct}L_{ct}^S+w_{ht}L_{ht}^S)+q_t^ZA_ZH_t^Z+\frac{R_{At-1}B_{t-1}}{\pi}+\frac{R{t-1}e^{\psi\frac{-d_{t-1}}{Y_{t-1}d{t-1}}}{\pi_{At}}+F_t \end{equation*} \end{document}