Prove that x ± y = b?

Question

I have been disturbed by this complicated problem from www.fofallthings.com and nobody has given me a concrete solution. May be I should not, I don’t know but the problem says: Prove that x ± y = b? Where b is the solution to any given numbers x and y, for which x is P and NP. Is it this possible to prove this? Importantly, this was said to be used as a premise to prove that P = NP. Thanks.

Answer 1

looking back the basic concepts of analytic geometry..we can say that x+-y=b if and only if the slope interception is being decline by the two roots of the function of x...its too complicated but..its impossible to prove that equation.

Answer 2

Click this link to view the proof

http://www.iiste.org/Journals/index.php/MTM/article/view/10520/13697

Answer 3

BTW, this was the premise that was used to prove that P ≠ NP

https://globaljournals.org/GJRE_Volume14/1-P-NP-Proof.pdf