Set 12: Linear Equations (Intermediate)

Explanation

Answer: D

Solve for $x$ : $3x - 6y = 12$

x = 6y + 12

x = -2y + 4

x = 2y - 4

x = 2y + 4

✓ Correct

Detailed Explanation

Choice D is correct. Choice C is the correct answer. 1. Start: $3x - 6 y = 12$ 2. Add 6 y: $3x = 6 y + 12$ 3. Divide by 3: $x = 2 y + 4$ Choice D is incorrect because sign error. Choice A is incorrect because sign error. Choice D is incorrect because forgot to divide.

Key Steps:

•

The correct answer is x = 2y + 4

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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