Предмет: Математика, автор: kirilldolin10

Помогите
7х +4= 9х-2

ksemkin09: x=3
ksemkin09: я не могу писать в ответ

Ответы

Автор ответа: Vikaaaalup
1

Ответ:

х=3

Пошаговое объяснение:

7х+4=9х-2

7х+4-4=9х-2-4

7х=9х-6

7х-9х-6

7х-9х=9х-6-9х

далі об'єднаємо подібні члени

-2х=-6

-2х/-2=-6/-2 /-риска дробу

скоротимо однакові члени в чисельнику та знаменнику та поділимо числа

х=3.

ksemkin09: слова не понимаю
Vikaaaalup: 7х+4=9х-2
7х+4-4=9х-2-4
7х=9х-6
7х-9х-6
7х-9х=9х-6-9х
далее объединим подобные члены
-2х=-6
-2х/-2=-6/-2 /-риска дроби
сократим одинаковые члены в числителе и знаменателе и поделим числа
х=3
ksemkin09: так понял
ksemkin09: но я тоже ответ написал
ksemkin09: снизу
Vikaaaalup: понятно
Автор ответа: ksemkin09
1

Ответ:

7х+4=9х-2

2+4=9х-7х

6=2х

х=3

Ответ:х=3

ksemkin09: извини что не сразу
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