Cannot define spacing between equations

Question

I have the following MWE:

\documentclass{article}    
\usepackage{amsmath}

\begin{document}


This example solves a simple equation:   

\begin{equation}
x + 2 = 6 \nonumber
\end{equation}    

\begin{equation}
\Leftrightarrow \nonumber
\end{equation}    

\begin{equation}
x = 4
\end{equation}


It would nice if the spacing between the equations was reduced!

\end{document}

Which looks like this:

I would like to reduce the spacing before and after the equivalence sign. I tried these options but none of them seems to work. Help!

never leave a blank line before a display math environment or put one after another, — David Carlisle, Jul 05 '17 at 11:38
cool I did not know that! thanks. can you give that as an answer so I can mark it correct for future reference? — user131526, Jul 05 '17 at 11:42

score 2 · Accepted Answer · answered Jul 05 '17 at 11:48

Since you are using the amsmath package, you should probably be using one of its grouping environment for this.

In this case, you want to display consecutive equations, centered with no special alignement. The gather environment does just that:

\begin{gather}
x + 2 = 6 \notag\\
\Leftrightarrow \notag\\
x = 4
\end{gather}

Cannot define spacing between equations

1 Answers1