Упростить выражения не пройди мимо добрый люд
(-4c ^8d^2)^3
(-0,1n^3)^4​

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Для того, чтобы найти решение системы уравнений:

3x + 2y = 8;

2x + 6y = 10,

применим метод подстановки. И начнем мы с того, что второе уравнение разделим на 2 и получим:

3x + 2y = 8;

x + 3y = 5.

Выражаем из второго уравнения переменную x:

x = 5 - 3y;

3x + 2y = 8.

Подставляем вместо x выражение из первого уравнения.

x = 5 - 3y;

3(5 - 3y) + 2y = 8.

Решаем первое уравнение системы:

3 * 5 - 3 * 3y + 2y = 8;

15 - 9y + 2y = 8;

-9y + 2y = 8 - 15;

-7y = -7;

y = 1.

Система уравнений:

x = 5 - 3 * 1 = 5 - 3 = 2;

y = 1.