Question

Let A = {x: x 3x=6}. Does A?
My answer: A ≠ 2 because x = 2 and x is an element of set A. Thus, A = {2}, but A itself is not equal to 2.

Answer 1

{x: x 3x=6} ??
Do you mean {x: 3x=6} ??

Then you ask
Does A?

Does A <u>what</u>?

However, you are correct in saying that {2} is not 2

Answer 2

Yes, I meant A = {x: 3x=6}. Is A therefore equal to 2, or is x = 2 just, instead of A = 2?

Answer 3

x = 2
A = {2}

Answer 4

Thank you. X = 2 and A = {2} makes sense. But let's say that A IS equal to 2. Could you explain how A could be equal to 2? I don't think it's possible. Maybe, if A contained two elements, then we could say that n(A) = 2.