Предмет: Алгебра, автор: llerovna701

помогите пожалуйста решить,подпишусь и поставлю лайк,на профиль!!!!​

Приложения:

Ответы

Автор ответа: sonia26040512
1

Ответ:

а) корней нет

б) х = 0, (48)

в) х = -1,5

Объяснение:

а) 3х - ( 4х + 5) = 3 - (2х - 3х)

   -х - 5 = 3 - 2х + 3х

    -8 = 0х

      х ∈ ∅

Ответ: корней нет.

б) 3,5х - 6,1х - 5х = 3,2 - х

   6,6х = 3,2

   х = 3,2: 6,6

   х = 0, (48)

 Ответ: 0, (48)

в) 5х - 2 = 4 · (5х - 3х)

   5х -2 = 20х - 12х

   5х - 20х + 12х = 2

   -3х = 2

    х = -1,5

   Ответь: -1,5

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