Solution's forecast (Posted on 2017-10-24)

	Submitted by Ady TZIDON
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GIVEN :(x+y) = (a-z) Transform the 2nd equation into (x+y)/xy + 1/z = 1/a. Substitute for (x+y) and simplify into az(a-z) + xy(a-z) = 0 i.e. ( a-z)(az+xy)= 0 with z=a being a candidate answer. By symmetry we could get x=a or y=a in the same way. QED

	Subject	Author	Date
	solution	xdog	2017-10-25 12:07:23
	re: Sollution	Ady TZIDON	2017-10-25 06:58:01
	Sollution	Kenny M	2017-10-24 17:06:56