44/x+y+30/x-y=10
52/x-y+40x-y=13
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Hey Brother take 1/x+y= u and 1/x-y=v then do cross multiplication and then u will get the answer .
https://www.nextgurukul.in/nganswers/ask-question/answer/Solve-for-x-and-y-/Geometry-and-Algebra/60864.htm
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