Предмет: Математика, автор: sergey0967

По действиям если возможно
И с объяснениям своих действий
20 баллов

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Автор ответа: masharipovqudratillo
1
Объяснение : Ставим -11 там где есть х , ставим 13 там где есть y.
(5 •-(11))-( 7•(9-13))=83.
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