Предмет: Алгебра, автор: semenutaartem

допоможіть будь ласка даю 20 балів!!!!!

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Ответы

Автор ответа: olgaua64

Відповідь:

-1/3

Пояснення:

система не має розв’язків, коли прямі паралельні, не мають спільних точек,

а це буде, коли виконується умова 3/1=-1/а≠4/(-6)

а=-1/3

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