Предмет: Математика, автор: valeriya2005g

найдите значение выражение (m+n)+(m+k)+(n+k),если m+n+k=83

Ответы

Автор ответа: Utem

(m+n)+(m+k)+(n+k)=m+n+m+k+n+k=2m+2n+2k=2(m+n+k)=2*83=166

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