Предмет: Алгебра, автор: amu2957

5. Розв'яжіть систему рівнянь x+y=3,\\ x - y = -1

Ответы

Автор ответа: Vanello1908
0

Ответ:

x = 1; y = 2

Объяснение:

x + y = 3
x - y = -1

x + y = 3
x = y - 1

y - 1 + y = 3

2y = 3 + 1

2y = 4

y = 2


x = 2 - 1

x = 1

Автор ответа: tetamotatetyamotya
0

Ответ:

..............

Объяснение:

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Приложения:

imsheher: Добрый день, сможете ли вы помочь с алгеброй? задания в профиле
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