$\"\"$

Formula for perimeter of a rectangle is $\"\"$ , where l is length and w is width.

$\"\"$ (Write the formula)

$\"\"$ (Substitute $\"\"$ ) $\"\"$

Evaluate the expression inside the parentheses.

$\"\"$ (Group like terms)

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

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

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

The simplified expression for the perimeter of the rectangle is $\"\"$ . $\"\"$

The simplified expression for the perimeter of the rectangle is $\"\"$ .