14x + 7 - 3 equals 13x - 3

plz show steps by step

14x+7-3=13x-3
14x+4=13x-3
x=-7

Check:
14(-7)+7-3=13(-7)-3
-98+7-3=-91-3
-91-3=-94
-94=-94 it works!

So x= -7

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.