Предмет: Алгебра, автор: golnik08

Помогите пожалуйста, с системой уравнений
x=4-y
-3+3y=0
_______
x=4-y
3y=...
Написал 1, в итоге неправильно :\

Приложения:

Ответы

Автор ответа: warrionpekz
1

Ответ:

3

Объяснение:

-3 переносится в правую часть с изменением знака


warrionpekz: Если подробнее, то
-3 + 3y = 0
3y = 0 + 3
3y = 3
Автор ответа: Universalka
0

\displaystyle\bf\\\left \{ {{x=4-y} \atop {-3+3y=0}} \right. \\\\\\\left \{ {{x=4-y} \atop {3y=3}} \right. \\\\\\\left \{ {{x=4-1} \atop {y=1}} \right. \\\\\\\left \{ {{x=3} \atop {y=1}} \right. \\\\\\Otvet: (3 \ ; \ 1)

Я полностью решила систему уравнений . Если в задании просили написать в ответе чему равно 3y , то ответ 3 .

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