Question

If x = 2y + 2, how much greater is 6x than 12y?

Answer 1

I think that it is A

Answer 2

We notice that in x=2y+2, y is double x

and in 6x and 12y, y is still double x



so
multiply x=2y+2 by 6
6x=12y+12

6x is 12 more than 12y


answer is D