Предмет: Алгебра, автор: CTaLiN4

решите систему {u=10+y {u-2y+1=4

Ответы

Автор ответа: MuhammadGulu
1

Ответ:

{u=10+y - вместо u поставим

{u-2y+1=4

10+y-2y+1=4

-y=4-1-10

-y=-7

y=7

И вместо у поставим 7

u=10+y

u=10+7=17

Ответ: y=7 ; u=17

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