Two more than a number equals three times the sum of one third of the number plus six. is this statement true for only one number, for all numbers, or for no numbers?

you.

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.