Question

matrici clasa a11a
exercitiul 1,va rog

Answer 1

1×1-0×2+2x=7×3-4×6

1-0+2x=21-24

-1+2×= -3

2+2x=0

Answer 2

$\it 2X=\begin{pmatrix}7&4\\ 6&3 \end{pmatrix}-\begin{pmatrix}1&0\\ 2&1\end{pmatrix} \Rightarrow 2X=\begin{pmatrix}6&4\\ 4&2 \end{pmatrix} \Rightarrow 2X=2\cdot \begin{pmatrix}3&2\\ 2&1 \end{pmatrix} \Rightarrow X=\begin{pmatrix}3&2\\ 2&1 \end{pmatrix}$