Предмет: География, автор: shark174

Найдите координаты точки пересечения прямых, заданных уравнениями 2х – 5 y = 18
и x+5 y =– 6.

Срочно​

Ответы

Автор ответа: pppooopppsss
1

Ответ:

(4;-2)

Объяснение:

x=-6-5y; 2(-6-5y)-5y=18;-12-10y-5y=18;-15y=30;y=-2

x=-6+10=4

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