Set 6: Linear Equations (Advanced)

Explanation

Answer: A

Solve for $y$ : $2x + y = 10$

y = -2x + 10

✓ Correct

y = -2x - 10

y = 2x + 10

y = 2x - 10

Detailed Explanation

Choice A is correct. Choice A is the correct answer. 1. Start: $2x + y = 10$ 2. Subtract 2 x: $y = -2 x + 10$ Choice C is incorrect because sign error on $2x$ . Choice D is incorrect because sign error on 10. Choice C is incorrect because sign error on 10 and $2x$ .

Key Steps:

•

The correct answer is y = -2x + 10

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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