22 more than four times a number is less than 82

22 more than (22+) four times  a number (4 times x or 4x) is less than(<) 82 (82)
22+4x<82
subtract 22 from both sides
4x<60
divide by 4
x<15
x is any number less than 15

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.