Предмет: Алгебра, автор: sergeypolonne

чи є число 9 коренем рівняння х+5=7 ; 27:х=3

Ответы

Автор ответа: sofiadubovik29

В 1 нет, во 2 да

Объяснение: в 1 варианте, если x=9, тогда 9+5= 14, а не 7. Во 2 варианте, если x=9, тогда 27÷9= 3.

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