Set 8: Linear Equations

Explanation

Answer: A

If $4(2x - 3) = 20$ , what is the value of $x$ ?

✓ Correct

Detailed Explanation

Choice A is correct. Choice D is the correct answer. 1. Divide by 4: $2x - 3 = 5$ 2. Add 3: $2x = 8$ 3. Divide by 2: $x = 4$ 4. Verify: $4(5) = 20$ ✓ Choice A 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. Choice D is incorrect because it results from an error in the solution process.

Key Steps:

•

The correct answer is 4

Why others are wrong:

B: Choice B 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.

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