10
algebra

A bag contains xx apples. If you add 5 apples, you have x+5x+5. If you double the original amount and subtract xx, you have 2x−x2x-x. Are these amounts equal?

A

No, never

B

Only if x=0

C

Only if x=5

D

Yes, always

Correct Answer: A

Choice Choice A is the correct answer.

  1. Expression 1: x+5x + 5
  2. Expression 2: 2x−x=x2x - x = x
  3. Set equal: x+5=xx + 5 = x
  4. Subtract x: 5=05 = 0
  5. Analyze: Contradiction. They are never equal.

Choice Choice B is incorrect because calculation error.

Choice Choice C is incorrect because calculation error.

Choice Choice B is incorrect because calculation error.

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Linear Functions Set 28