$\"\"$

The equation is

$\"\"$

The matrices have the same dimensions and the corresponding elements are equal.

The equality can be written as a two linear equations

$\"\"$ Equation (1)

$\"\"$ Equation (2)

$\"\"$

The first equation is $\"\"$

$\"\"$ (Divide by each side by 4).

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ ).

$\"\"$

The second equation is $\"\"$

$\"\"$ (Divide each side by 3).

$\"\"$ (Simplify: $\"\"$ ).

$\"\"$

The solution is $\"\"$ .