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1

Just insert two pauses with the command \pause. One after the text, the other after the image. \documentclass[xcolor=table]{beamer} % \setbeamercovered{dynamic} \newcommand\hideit[1]{% \only<0| handout:1>{\mbox{}}% \invisible<0| handout:1>{#1}} \mode<presentation> { } \usetheme{CambridgeUS} \usepackage{comment} \usepackage{graphicx} %...


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This is explained at the end of section 23.4 of beamer's manual. \documentclass{beamer} \usepackage{amsmath} \begin{document} \begin{frame} \begin{subequations}\label{eq:oi} \begin{align} y &= mx + ac - bc \\ \uncover<2->{y &= mx + c(a - b)\\} \notag \end{align} \vspace{-2ex} \end{subequations} \end{frame} \end{document}


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Regarding your first question, I propose expl3 code to automatically generate the coordinate sequences. Your commands \four and \six can then be defined with these two lines: \defineCoordsSeq{\four}{0}{24}{3} \defineCoordsSeq{\six}{0}{36}{2} I prefer renaming them to \fourSeq and \sixSeq to reduce the risk of overwriting macros from “someone else”; so, ...


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