For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y = 0, what is the value of x?
(1) a = 3
(2) y = -3
1)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked
2)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked
3)Both statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient
4)EACH statement ALONE is sufficient to answer the question asked
5)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed
Kudos is appreciated.
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100% (00:49) correct 
