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Noah says that 9x−2x+4xis equivalent to 3x, because the subtraction sign tells us to subtract everything that comes after 9x. Elena says that 9x−2x+4xis equivalent to 11x, because the subtraction only
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23 votes
23 votes
Noah says that 9x−2x+4xis equivalent to 3x, because the subtraction sign tells us to subtract everything that comes after 9x.

Elena says that 9x−2x+4xis equivalent to 11x, because the subtraction only applies to 2x.



Who is correct? And why are they correct?

Group of answer choices

Elena

Noah

User Matchingmoments
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2 Answers

18 votes
18 votes
11x and Elena is correct. Correct me if i’m wrong.
User Ramkumar Hariharan
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2.9k points
20 votes
20 votes
11x - Elena is correct, addition and subtraction are applied in the order that they appear.
User Urini
by
2.8k points
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