Question

If 2 is substituted for x, which expression will NOT equal 5? A) 7 -x B) 11 – 3x C) 2x - 1 D) 4x - 3

Answer 1

C) 2x-1

1) Writing the expressions, plugging into that the value of x=2

7-x = 7-2 = 5

11-3x = 11-3(2) =5

2x -1= 2(2) -1 = 3

4x -3 = 4(2) -3 = 5

2) So the answer is C) 2x-1 because 2(2) -1 = 3