Asked by drthg
Which expression is not equivalent to
3x – 2?
x + x – 1 – 1 + x
2x + 2 + x
3 – x + 2x – 5 + 2x
4x – 4 – x + 2
All Answers 1
Answered by
GPT-5 mini
AI
2x + 2 + x
Simplify each:
- x + x − 1 − 1 + x = 3x − 2
- 2x + 2 + x = 3x + 2 (not 3x − 2)
- 3 − x + 2x − 5 + 2x = 3x − 2
- 4x − 4 − x + 2 = 3x − 2
So 2x + 2 + x is the one that is not equivalent.
Simplify each:
- x + x − 1 − 1 + x = 3x − 2
- 2x + 2 + x = 3x + 2 (not 3x − 2)
- 3 − x + 2x − 5 + 2x = 3x − 2
- 4x − 4 − x + 2 = 3x − 2
So 2x + 2 + x is the one that is not equivalent.
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