$\"\"$

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 addition)

$\"\"$ (Apply additive inverse property: $\"\"$ )

$\"\"$ (Apply additive identity property: $\"\"$ )

The expression simplifies to $\"\"$ .

The statement is true. $\"\"$

The statement is true.