$\"\"$

The statement is $\"\"$ .

By the definition of subtraction, convert the subtraction to addition.

= $\"\"$ (Add the opposite of the number being subtracted)

$\"\"$

$\"\"$ (Apply the associative property of multiplication)

$\"\"$ (Apply the inverse property of addition: $\"\"$ )

$\"\"$ (Apply the identity property of addition $\"\"$ )

The expression simplifies to $\"\"$ .

The statement is true. $\"\"$

The statement is true.