Предмет: Математика, автор: ad6019012gmailcom

чому дорівнює х, якщо 7.8 *х =1
очень нужно и СРОЧНО

Ответы

Автор ответа: Griftor

1

Ответ:

x=5/39

Пошаговое объяснение:

7,8x=1

7,8x:7,8=1:7,8

x= 1:39/5

x=5/39

Автор ответа: OblivionFire

1

решаем уравнение

7,8*x=1

x=1:7,8=1:39\5=1*5\39=5\39

ответ. x=5\39

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