Question

решите систему уравнений -x = 3-2y и x-5y=-6

Answer 1

$- x = 3 - 2y \ x - 5y = - 6 \ \ - x + 2 y= 3 \ x - 5y = - 6 \ \ - 3y = - 3 \ x = 2y - 3 \ \ y = 1 \ x = 2 - 3 = - 1$
Ответ: (-1; 1)