Question

Which pair of expressions are equivalent? 2y minus four and 2y minus four plus 9, 14x minus seven and 7x minus fourteen, 9y plus 3 plus two and 3(y plus one) plus two, x plus y and x minus y plus 2y, x plus 2y and x minus y

Answer 1

D. x plus y and x minus y plus 2y

x + y

x + y

Explanation:

2y minus four and 2y minus four plus 9

2y - 4

2y - 4 + 9

14x minus seven and 7x minus fourteen

14x - 7

7x - 14

9y plus 3 plus two and 3(y plus one) plus two

9y + 3 + 2

3(y + 1) + 2 = 3y + 3 + 2

x plus y and x minus y plus 2y,

x + y

x - y + 2y = x + y

x + y

x + y

x plus 2y and x minus y

x + 2y

x - y