hdisley26 hdisley26

29-03-2021
Mathematics

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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 applies to 2x.

Who is correct? And why are they correct?

Group of answer choices

Elena

Noah

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penelope2021 penelope2021

29-03-2021

11x - Elena is correct, addition and subtraction are applied in the order that they appear.

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TraLaysia TraLaysia

29-03-2021

11x and Elena is correct. Correct me if i’m wrong.

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