Algebra-1

Question Analysis
This question evaluates the student's ability to solve a literal equation for a specific variable. The given equation is the formula for the area of a trapezoid, and the goal is to isolate .

Key Concept Explanation
The key concept here is the manipulation of algebraic expressions to isolate a variable. Students need to apply the properties of equality, specifically multiplication and division, to rearrange the equation.

Step-by-step Solution
1. Start with the given equation:
2. Multiply both sides by 2 to eliminate the fraction: