If x and y are integers, is y an even integer?

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M7MBA: Moderator; Posts: 2058; Joined: Sun Oct 29, 2017 4:24 am; Thanked: 1 times; Followed by:5 members

If x and y are integers, is y an even integer?

by M7MBA » Sat Feb 03, 2018 6:54 am

If x and y are integers, is y an even integer?

(1) 2y - x = x^2 - y^2

(2) x is an odd integer.

The OA is the option A.

I don't know how to get an answer from statement (1). Experts, may you give me some help? Thanks.

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