If x = ?? ??1012?10?101?? ?? | 1 0 1 2 ? 1 0 ? 1 0 1 | and y = ?? ???1120?1?1201?? ?? | ? 1 1 2 0 ? 1 ? 1 2 0 1 | find 2x - y

If x = $?\begin{array}{ccc}1& 0& 1\\ 2& ?1& 0\\ ?1& 0& 1\end{array}?$ and y = $?\begin{array}{ccc}?1& 1& 2\\ 0& ?1& ?1\\ 2& 0& 1\end{array}?$
find 2x - y

Answer Details

2(10 - (-1) = 3 2(2) - (0) = 4 2(-1) - (2) = -4
2(0) - (1) = -1 2(-1) - (-1) = -1 2(0) - (-1) = 1
2(10 - (20) = 0 2(0) - (-1) = 1 2(1) - (1) = 1
$\left|\begin{array}{ccc}3& -1& 0\\ 4& -1& 1\\ -4& 1& 1\end{array}\right|$