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Ответ

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IrkaShevko

Ответ:

х + 4у

Пошаговое объяснение:

(-2ху+у)+(2ху+3у+х) = -2ху + у + 2ху + 3у + х =

= 2ху - 2ху + у + 3у + х = 0 + 4у + х = 4у + х

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