02.04.2022

4x — y = 4
16x + 3y = 2
система уравнений

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Алгебра

Вопрос школьника по предмету Алгебра

4x — y = 4
16x + 3y = 2
система уравнений

Ответ учителя по предмету Алгебра

Домножим первое уравнение на -4 и сложим со вторым, получаем

{-16x+4y=-16

{16x+3y=2

7y=-14 ⇒ y=-2; x=0,5

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