Предмет: Алгебра, автор: milmikhailenck

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Автор ответа: nKrynka

(a² - 4a)*x = a - 3x - 3
(a² - 4a)*x + 3x = a - 3
x(a² - 4a + 3) = a - 3
x = (a - 3) / (a² - 4a + 3)
a² - 4a + 3 = 0
a₁ = 1
a₂ = 3
a² - 4a + 3 = (a - 1)(a - 3)
x = (a - 3) / (a - 1)(a - 3)
x = 1 / (a - 1), a ≠ 1

Автор ответа: milmikhailenck

Спасибо большое))

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