[Tex/LaTex] Math symbol explanation in the same line

Question

I would like to write the explanation of symbols on the same line of the equation.

I would like to see something like this:

This is my code:

\documentclass{article}
\usepackage[utf8]{inputenc}

\usepackage{tasks}
\usepackage{amsmath}

\begin{document}

\begin{equation}
 K_0 = \frac{\sum x}{n} && \text{where, $x_i$ - raw yaw angle at idle state} \label{eq:2} \\
 \text{$n$ - total number of measurements}
\end{equation}

\end{document}

Answer 1

I generally would not add that as a part of the equation as there is often limited space available. If you insist, you could do something like

\begin{equation}
 K_0 = \frac{\sum x}{n} \qquad  \text{where,}\quad
 \begin{alignedat}[t]{2}
   &x_i &&\text{ -- raw yaw angle at idle state}
   \\
   & n &&\text{ -- total number of measurements}
\end{alignedat}
\end{equation}