9

Set 7: Linear Equations (Advanced)

Explanation

Answer: D

Solve: x6+2=5\frac{x}{6} + 2 = 5

A.

3

B.

12

C.

42

D.

18

✓ Correct

Detailed Explanation

Choice D is correct. Choice Ahoice D is the correct answer. 1. Subtract 2: x6=3\frac{x}{6} = 3 2. Multiply by 6: x=18x = 18 3. Verify: 3+2=53+ 2 = 5 ✓ Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice C is incorrect because it results from an error in the solution process. Choice Ahoice D is incorrect because it results from an error in the solution process.

Key Steps:

The correct answer is 18

Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.

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