If $8+6=n+8$, then $n$ equals
(A) 14
(B) 22
(C) 6
(D) -2
(E) 9
Since $8+6=n+8$, then subtracting 8 from both sides, we obtain $6=n$ and so $n$ equals 6 . Alternatively, since the order in which we add two numbers does not change the sum, then $8+6=6+8$ and so $n=6$.

ANSWER: (C)