Answer
False
Work Step by Step
Let's analyse these matrices to see whether the statement is true
$\begin{equation*}
A =
\begin{bmatrix}
1 & 1 & 2 \\
0 & 1 & 2 \\
3 & 2 &1
\end{bmatrix}
\end{equation*} \rightarrow M_{11}=2$
$\begin{equation*}
2A =
\begin{bmatrix}
2 & 2 & 4 \\
0& 2 &4 \\
6 & 4 &2
\end{bmatrix}
\end{equation*} \rightarrow M_{11}=8 \ne 4$
Hence, the statement is false.
