Multiline MathJax?

Any way to use multiline MathJax with Bear? I write:

$$
1 + 2 = 3 \\
3 + 4 = 7 \\
5 + 6 = 11
$$

But the output is always displayed as

1 + 2 = 33 + 4 = 75 + 6 = 11

Is this not supported at this time, or is there another way to achieve a multiline output?

On macOS Sequoia 15.6.1.
Thanks!

Ah, the layout is not the same but I solved it with align (and got the layout I wanted):

$$
\begin{align}
& 1 + 2 = 3 \\
& 3 + 4 = 7 \\
& 5 + 6 = 11
\end{align}
$$

The & makes this block left-aligned