tashaaa23 tashaaa23 21-01-2021 Mathematics contestada Select all the expressions that are equivalent to 9 + 7x - 3y. [Choice A) 9 + 7x - 3y (Choice B] 9 - 7x - 3y (Choice C) 9 - 7x + 3y (Choice D) 9 + 7x + (-3y) (Choice E) 9 - (-7)x - 3y