# How to change one thing to change all

I have the following but when I change scale, I have to change all images. Is there a better way so that I can change only one place? I read about command/macro but not sure how to use it in this case.

\documentclass[fleqn]{article}
\usepackage{graphicx}
\begin{document}
\begin{enumerate}
\item
\includegraphics[scale=0.6,valign=t]{images/image13}
\item
\includegraphics[scale=0.6,valign=t]{images/image14}
\item
\includegraphics[scale=0.6,valign=t]{images/image18}
\item
\includegraphics[scale=0.6,valign=t]{images/image19}
\end{enumerate}
\end{document}

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–  Werner Mar 10 '14 at 5:35
@Werner: you ninja'd me with this association... –  mbork Mar 10 '14 at 5:55
That's one of LaTeX's selling points. I don't think automatically scaling images is very easy in Word, for instance. –  Jubobs Mar 10 '14 at 7:34

I suggest defining the scale factor as a macro \imagescale (say). This way, a single change will affect everything:

\documentclass{article}