Question

Срочно!!!!!!!Пожалуйста

Answer 1

x-3x + y = 3 | *2

5x - 2y = -4

-6x + 2y = 6

5x - 2y = -4

-x = 2

x = -2

5 * (-2) - 2y = -4

-2y = -4 + 10

-2y = 6

y = -3

-2 * (-3) = 6

Ответ: 6

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3x + y = -5 | *(-3)

2x + 3y = 6

-9x - 3y = 15

2x + 3y = 6

-7x = 21

x = -3

2 * (-3) + 3y = 6

3y = 6 + 6

y = 4

4 * (-3) = -12

Ответ: -12