\documentclass[a4paper]{article}

\usepackage{color}
\usepackage{amsmath}
\usepackage{xepersian}

\settextfont[Scale=1]{Yas}
\setlatintextfont[Scale=1]{Yas}
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\begin{document}
این یک رابطهٔ ریاضی است.

\begin{equation}
\color{red}\boxed{\color{black} F = ma,}
\end{equation}

شاید به روشی عجیب.

\begin{equation}\label{app-ddgt}
   \boxed{
   \begin{aligned}
      \Delta\delta g_{T}
      =\frac{1}{l_{m}}\Bigl[&\delta\mathbf{g}\cdot\mathbf{nn}\cdot\Delta\mathbf{m}
      +\delta\mathbf{m}\cdot\mathbf{nn}\cdot\Delta\mathbf{g}
      -\xi\delta\mathbf{m}\cdot\mathbf{nn}\cdot\Delta\mathbf{m} \\
      & -\frac{g_{N}}{l_{m}}\bigl(\delta\mathbf{m}\cdot\mathbf{tn}\cdot\Delta\mathbf{m}
      +\delta\mathbf{m}\cdot\mathbf{nt}\cdot\Delta\mathbf{m}\bigr)\Bigr]
   \end{aligned}
   }
\end{equation}


\begin{center}
   \colorbox{red}{
      \fbox{
         \begin{minipage}[t]{1.0\textwidth}
            text
         \end{minipage}
      }
   }
   
   \end{center}
   
 \begin{center}
   \fbox{\colorbox{red}{
         \begin{minipage}[t]{1.0\textwidth}
            text
         \end{minipage}
      }
   }
\end{center}

\fcolorbox{red}{white}{

$ \int_a^b f = ma dx $

}

\fcolorbox{red}{white}{

         \begin{minipage}[t]{0.5\textwidth}
            \begin{equation}
            f =ma,
            \end{equation}
         \end{minipage}

}



\end{document}