Can you solve for y FAST !? Thank you!1

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.

What can we do about it

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.