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How to write equation where all equation are in only opening curly bracket and there is no closing curly bracket and with equation number

  • Welcome to TeX.SE.
    – Mico
    Jun 5 at 10:49
  • 1
    This looks a lot like a cases environment (amsmath package). Jun 5 at 12:00
  • 1
    Mico's solution below is how I would do it, but your displayed example shows that the terms on the left of the equals sign to be left aligned. If you use aligned you will get a result having them right alighted. If that's an issue, you will want to look at the alignedat environment. Jun 5 at 19:00
  • I would consider to put the brace on the right side. That makes more sense when it comes to the numbering, if on the right side.
    – mickep
    Jun 5 at 20:45

1 Answer 1


I suggest you embed a

\left\{ \begin{aligned} ... \end{aligned} \right.

construct in an ordinary equation environment.

enter image description here

\documentclass{article} % or some other suitable document class
\usepackage{amsmath} % for 'aligned' environment

a &= b+c \\
d &= e+f \\
g &= h+i \\
j &= k+l


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