How do I make the content below a \text{} line centered?

I want to make the equations below the instruction centered.

How do I make the content below a \text{} line centered?

I want to make the equations below the instruction centered.

```
$$\begin{array}
\text{Rearrange\ each \ equation\ by\ making\ the\ marked\ variable\ the\ subject}\\
f=\frac{1}{2\Pi}\sqrt{ \frac{k}{m} } \\
v=\sqrt{ \frac{YRT}{m} }
\end{array}
$$
```

Is there a different way to write it without the \ between the words? I wanna include a bunch of steps for different equations and feel like it will slow my process down a lot.

1 Like

```
$$
\begin{gather*}
\text{Rearrange each equation by making the marked variable the subject} \\
f=\frac{1}{2\Pi}\sqrt{ \frac{k}{m} } \\
v=\sqrt{ \frac{YRT}{m} }
\end{gather*}
$$
```