Предмет: Математика, автор: AlteRRu

Решите систему уравнений методом подстановки:
15x-4y=8
-3x+y=1

Ответы

Автор ответа: lyandr
0

Ответ:

x=4 y=13

Пошаговое объяснение:

из второго уравнения выражаем y=1+3x

подставляем во второе 15x -4-12x=8

3x=12

x=4,

тогда y=1+12

y=13

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