Предмет: Математика, автор: kitty0mrrr

Помогите решить системы тwт
2 и 3 можете не решать, срочно нужно решение первого!

№1461 . Решите системы уравнений способом сложения :

Приложения:

Ответы

Автор ответа: ketti0442
3

Ответ:

Ответ на картинке ( х, y) = (4,-2)

Приложения:
kitty0mrrr: Спасибо большое!!!
Автор ответа: orosamaha
3

Ответ:

Решаем методом сложения. 2х-2х+3у+2у=2-18

8у=-16

У=-8

Подставляем в первое уравнение

2х+3*-8=2

2х-24=2

2х=2+24

Х=13

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