Предмет: Математика, автор: лиза2064

-x-2+3(x-3)=3(4-x)-3

Ответы

Автор ответа: joker4048

0

Раскрываем скобки, переносим неизвестные в одну сторону, известные в другую, получаем уравнение -x+3x+3x=9+12-3, получаем, что 5x=18, делим 18 на 5 и получаем ответ x=3,4

Автор ответа: Getwork

0

-x-2+3(x-3)=3(4-x)-3
2х-11=9-3х
2х+3х=11+9
5х=20
х=4

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