# Typeset enumerated math formulas with nested braces

How to typeset the following math formula?

I just can't do that beautifully

• Welcome to the site TeX.SE. The tag latex3 is not very correct. – Sebastiano Oct 27 '18 at 9:58
• Note this is Q&A site, not a please do this for me service. What do you have so far. – daleif Oct 27 '18 at 10:50
• Search for \rcases and \left\} in latex – nidhin Oct 27 '18 at 10:54
• Can you please choose a title that describes your problem? In its current form it won't help any future users of this site who might have the same problem as you. – user36296 Oct 27 '18 at 14:06

You should try

\documentclass{article}
\usepackage{esvect}
\usepackage{amsmath}

\begin{document}
\begin{equation*}
\left.\begin{aligned}
1)&\left.
\begin{aligned}
\sum\vv*{F}{x}&=0\\
\sum\vv*{F}{y}&=0
\end{aligned}
\right\rbrace\\
2)&\sum\vv{M}=0
\end{aligned}
\right\rbrace
\end{equation*}
\end{document}