Предмет: Математика, автор: dominikaeva08

З'ясуй, чи є коренем рівняння 2x+5=17 число −6.
срочно​

Ответы

Автор ответа: alinakirichuk68
1

Ответ:

Підставляємо це число і виходить

2×(-6)+5=17

-12+5=17

-7=17

не є коренем рівняння

marinenkov0: -12 + 5= -7
dominikaeva08: спс
alinakirichuk68: я тільки що побачила, дякую, що виправили
Автор ответа: marinenkov0
1

Відповідь:

2х + 5=17, якщо х=-6 то

2*(-6) + 5≠17

-12 + 5≠17

-7≠17

число (-6) не є коренем рівняння 2х + 5=17

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