Your statement is fallible if x+y combine simply to create x+y without there being any benefit, exponential or otherwise, to such a combination using such general terms that can be argued ad infinatum since you make multiplication a null. What you propose is a paradox, what you propose is 3 letters of a 26 letter alphabet.
26 divided by 3 = 8 and 1/3
Your equation is therefore 2 1/3 and not the 3 you propose. You are false.