$\"\"$

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 addition is possible.

Add the corresponding elements.

$\"\"$

$\"\"$ (Simplify) $\"\"$

$\"\"$

Multiply the matrix by $\"\"$ 5.

$\"\"$

$\"\"$ (Multiply each element by $\"\"$ 5)

$\"\"$ (Simplify) $\"\"$

The solution is $\"\"$ .