Imagine you have just received the text message below - вопрос №992147 от alinayusupova305 07.02.2020 15:03

Question

Другие предметы: Imagine you have just received the text message below from a friend. Report the message to Mr. Davidson.

alinayusupova305 · Answer

7х+2х=3,5289х=3,528х=3,528:9х=0.392проверка:7*0.392+2*0.392=3,5282,744+0,784=3,5283,528=3,528ответы сошлись уравнение решено правильно...