Set 7: Linear Equations

Explanation

Answer: B

Solve: $\frac{1}{2}(x + 4) = 6$

✓ Correct

Detailed Explanation

Choice B is correct. Choice B is the correct answer. 1. Multiply by 2: $x + 4 = 12$ 2. Subtract 4: $x = 8$ 3. Verify: $\frac{1}{2}(12) = 6$ ✓ Choice C 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 8

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.

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