$\"\"$

The expression is $\"\"$

$\"\"$ (Commutative property: $\"\"$ )

$\"\"$ (Distributive property: $\"\"$ )

$\"\"$ (Add: $\"\"$ ) $\"\"$ $\"\"$ (Additive inverse property: $\"\"$ )

$\"\"$ (Additive identity property: $\"\"$ )

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .