Предмет: Алгебра, автор: musicyaan1

помогите пожалуйста нужно сейчас задание на фото ​

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Автор ответа: ТатК
1

Ответ:

Раскрываем скобки; приводим подобные; известные в одну сторону, неизвестные в другую....

Объяснение:

   y^2 + 6y + 9 - y^2 - 3y = 12

  3y + 9 = 12

  3y = 12 - 9

   3y = 3

    y = 1

selfcare39: Здравствуйте, помогите пожалуйста с алгеброй! задание у меня в профиле! отмечу 5 звёзд и сделаю лучший ответ!
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