Question

Помогите пожалуйста.

Answer 1

1) -3x + y = 2

x - 3y = 2

y = 2 + 3x

x - 3y = 2

x - 3 × (2 + 3x) = 2

x = -1

y = 2 + 3 × (-1)

y = -1

(x, y) = (-1, -1)