What is the way to achieve something between `gather`

and `aligned`

?

```
\documentclass[12pt]{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[utf8]{inputenc}
\begin{document}
\begin{gather}
3(a-x) = 3.5x + a - 1 \\
3a - 3x = 3.5x + a -1 \\
a = \frac{13}{4}x - \frac{1}{2}
\end{gather}
\begin{equation}
\begin{aligned}
3(a-x) = 3.5x + a - 1 \\
3a - 3x = 3.5x + a -1 \\
a = \frac{13}{4}x - \frac{1}{2}
\end{aligned}
\end{equation}
\end{document}
```

Result:

But…

How to achieve something like this? I'd like to keep the centering.

Is this possible somehow?

## Best Answer

The

`gathered`

environment, used within math mode, is what you're looking for.Wikibooks LaTeX has a fairly nice list of the different kinds of equation and align environments.