Question

{ 2x + 4y = 0; x − y + 6 = 0:

Answer 1

2x + 4y = 0
X - y + 6 = 0
Решение
y = X + 6
2x + 4( X + 6 ) = 0
2x + 4x + 24 = 0
6x = - 24
X = - 4
y = - 4 + 6
y = 2
Ответ ( - 4 ; 2 )