Предмет: Алгебра, автор: hyks12

Дана система двух уравнений
{ y+9x=2
3y-9x=4
Найдите значение переменной y

y=

Ответы

Автор ответа: bylucheva

1

Ответ:

Объяснение:

Решим систему с помощью арифметического сложения

(у+3у)+(9х-9х)=2+4

4у=6

у=1.5

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