Algebra-1

Question Analysis
This question tests the student's understanding of the Identity Property and their ability to simplify algebraic expressions.

Key Concept Explanation
The Identity Property states that adding zero or multiplying by one does not change the value of an expression. This property is used to simplify expressions by combining like terms.

Step-by-step Solution
1. Start with the given expression:
2. Apply the additive identity property:
3. Apply the multiplicative identity property: