Algebra-1

Question Analysis
This question tests the student's ability to apply the distributive property to simplify an algebraic expression.

Key Concept Explanation
The distributive property states that multiplying a number by a sum is the same as multiplying the number by each addend and then adding the products. In this case, we distribute the 7 to both terms inside the parentheses.

Step-by-step Solution
1. Apply the distributive property:
2. Simplify each term: