Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value

Question

Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which could be Pierre’s original expression?
2(7x – 4)
2(x – 19)
2(x + 10)
2(5x + 1)

GPT-5 mini · Answer

2(7x − 4)

Reason: Simplify to 14x − 8, and 14(2) − 8 = 28 − 8 = 20. The other choices give different values at x = 2.

Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which could be Pierre’s original expression?
2(7x – 4)
2(x – 19)
2(x + 10)
2(5x + 1)

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Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which could be Pierre’s original expression? 2(7x – 4) 2(x – 19) 2(x + 10) 2(5x + 1)

All Answers 1

Submit Your Answer

Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which could be Pierre’s original expression?
2(7x – 4)
2(x – 19)
2(x + 10)
2(5x + 1)