\documentclass[a4paper,10pt]{article}
\usepackage{myXsim}
\usepackage{booktabs}

\author{}
\title{Évolution successives: bilan}
\date{Octobre 2019}

\pagestyle{empty}

\newcommand\cours{%
    \begin{minipage}{0.5\textwidth}
        \section*{Évolution arithmétique}

        \begin{tikzpicture}[
            roundnode/.style={circle, draw=green!60, fill=green!5, very thick, minimum size=7mm},
            squarednode/.style={rectangle, draw=red!60, fill=red!5, very thick, minimum size=5mm},
            ]
            %Nodes
            \node[roundnode]        (leftterme)        {\np{10000}};
            \node[roundnode]        (centerterm)      [right=of leftterme] {\makebox[1.2cm]{}};
            \node[roundnode]        (rightterm)       [right=of centerterm] {\makebox[1.2cm]{}};

            %Lines
            \draw[->] (leftterme.east) -- (centerterm.west) node [midway, above] {+1700};
            \draw[->] (centerterm.east) -- (rightterm.west) node [midway, above] {+1700};
        \end{tikzpicture}

        On \textbf{ajoute} (ou soustrait) la même quantité à chaque étape.

        \section*{Évolution géométrique}

        \begin{tikzpicture}[
            roundnode/.style={circle, draw=green!60, fill=green!5, very thick, minimum size=7mm},
            squarednode/.style={rectangle, draw=red!60, fill=red!5, very thick, minimum size=5mm},
            ]
            %Nodes
            \node[roundnode]        (leftterme)        {\np{10000}};
            \node[roundnode]        (centerterm)      [right=of leftterme] {\makebox[1.2cm]{}};
            \node[roundnode]        (rightterm)       [right=of centerterm] {\makebox[1.2cm]{}};

            %Lines
            \draw[->] (leftterme.east) -- (centerterm.west) node [midway, above] {$\times 1.09$};
            \draw[->] (centerterm.east) -- (rightterm.west) node [midway, above] {$\times 1.09$};
        \end{tikzpicture}

        On \textbf{multiplie} (ou divise) par le même nombre à chaque étape.

        \paragraph{Remarque:} Une évolution en \% correspond à une évolution géométrique.
    \end{minipage}
    \begin{minipage}{0.5\textwidth}
        \includegraphics[scale=0.7]{./fig/graph_placement}
        
    \end{minipage}
}

\begin{document}

\cours

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\cours

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\end{document}