Algebra-1

Question Analysis
This problem requires students to set up and solve a system of linear equations based on the given information about the dimensions of a rectangular field and then calculate the area.

Key Concept Explanation
The key concepts include setting up a system of equations, solving the system, and using the solution to find the area of the rectangle.

Step-by-step Solution
1. Define the variables: Let be the width and be the length of the field.
2. Write the system of equations based on the given information:


3. Substitute into the second equation:

4. Simplify and solve for :

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