$\"\"$

For subtracting matrices, their dimension should be equal.

First write the dimension of the matrix.

The dimensions of matrix B and C are $\"\"$ .

The operation (6B – 2A) is possible. $\"\"$

Multiply the matrix B by 6.

$\"\"$

$\"\"$ (Multiply each element by 6)

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

Multiply the matrix A by 2.

$\"\"$

$\"\"$ (Multiply each element by 2)

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

Perform the operation 6B – 2A.

$\"\"$

$\"\"$ (Subtract corresponding elements)

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

(6B – 2A) $\"\"$ .