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Mathematics, 26.06.2020 16:01 asdfghj3513

Simplify this expression. 2/(x-y)+3/(x+y)-5/(y-x)-(7x-9y)/(y^ (2)-x^(2))=?/(y^2-x^2 Find the question mark (?)

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Simplify this expression. 2/(x-y)+3/(x+y)-5/(y-x)-(7x-9y)/(y^ (2)-x^(2))=?/(y^2-x^2 Find the questio...
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