Question

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

Answer 1

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

Answer 2

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