Question

Identify the expression that is not equivalent to 6x + 3.

5x + x + 3

3(2x +1)

12*x+6/2

3(2x + 3)

Answer 1

The answer is 12*x+6/2

Answer 2

Explanation:

5x + x + 3 = 6x + 3 => equivalent

3(2x + 1) = 6x + 3 => equivalent

12×x + 6/2 = 12x + 3 => not equivalent

3(2x + 3) = 6x + 9 => not equivalent