$\"\"$

For adding matrices, their dimension should be equal.

First write the dimension of the matrix.

The first matrix is, $\"\"$

The matrix has 2 row and 2 columns, so dimensions of matrix are $\"\"$ .

The second matrix is, $\"\"$

The matrix has 2 row and 2 columns, so dimensions of matrix are $\"\"$ . $\"\"$

The dimensions of matrix are equal. The operation of subtraction is possible.

Subtract the corresponding elements.

$\"\"$

Product of two same sings is positive. \ \

$\"\"$

The solution is $\"\"$ .