Question

Please show step by step

Answer 1

`\begin{pmatrix}6&-5\\ 0&-2\end{pmatrix}`

Explanation:

`2\begin{pmatrix}2&-3\\ 1&-1\end{pmatrix}=\begin{pmatrix}4&-6\\ 2&-2\end{pmatrix}`

`\begin{pmatrix}4&-6\\ 2&-2\end{pmatrix}+\begin{pmatrix}2&1\\ -2&0\end{pmatrix}`=

`\begin{pmatrix}6&-5\\ 0&-2\end{pmatrix}`