What is the value of x – y?( x + y = 3y – x( x+y=x3 +y3

What is the value of x – y?
(1) x + y = 3yx
(2) x + y = x3 + y3
(A) if statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Exercise Set C with Video Solutions

Arcadia
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Posted: 02/13/2013 14:01
Why is A correct?