Set 9: Linear Equations

Explanation

Answer: B

The area of a rectangle is not typically solved with linear equations unless one dimension is known. If Area = 48 and Width = 6, and Length = $2x + 4$ , find $x$ .

✓ Correct

Detailed Explanation

Choice B is correct. Choice C is the correct answer. 1. Area Formula: $A = L \times W$ 2. Substitute: $48= 6(2 x + 4)$ 3. Divide by 6: $8= 2 x + 4$ 4. Subtract 4: $4= 2 x$ 5. Divide by 2: $2= x$ 6. Verify: $L = 8$ . $6\times 8 = 48$ ✓ Choice D is incorrect because it results from an error in the solution process. Choice D is incorrect because it results from an error in the solution process. Choice C is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 2

Why others are wrong:

A: Choice A is incorrect and may result from a calculation error.

C: Choice C is incorrect and may result from a calculation error.

D: Choice D is incorrect and may result from a calculation error.

← Previous Next →

🎯 Keep Practicing!

Master all sections for your best SAT score

📚Reading & Writing→📖Vocabulary→