$\"\"$

The algebraic expression is $\"\"$ .

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

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

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

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

The simplified expression is $\"\"$ .