$\"\"$

The expression is $\"\"$ .

$\"\"$ (Apply distributive property: $\"\"$ )

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Apply commutative property of addition: $\"\"$ ) $\"\"$ $\"\"$ (Apply associative property of addition: $\"\"$ )

$\"\"$ (Apply distributive property: $\"\"$ )

$\"\"$ (Add: $\"\"$ ) $\"\"$

The simplified expression is $\"\"$ .