How to number multiple equations together with a right brace }

Question

How can one number a bunch of equations together with a right brace like shown below?

I work with the following document class:

\documentclass[pra,superscriptaddress, twocolumn,amsmath,amssymb]{revtex4}

and I tried the following but it doesn't work

    \begin{align}
           \left.
              \begin{split}
                    a &= b \\
                    c &= d \\
                    e &= f
             \end{split}
           \right\}
   \end{align}

Thanks, @Mensch. I hope my first question meets the quality requirements of this platform. — User101, Oct 04 '21 at 13:56

score 1 · Answer 1 · answered Oct 04 '21 at 14:00

Use equation instead of align for the outer and aligned instead of split for the inner environment.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
  \left.
  \begin{aligned}
    a &= b \
    c &= d \
    e &= f
  \end{aligned}
  \qquad
  \right}
\end{equation}
\end{document}

Have a look at section 3 of amsldoc.pdf (texdoc amsmath) for more details on the different math environments.

How to number multiple equations together with a right brace }

1 Answers1