x
x = 4 - 2y
5*(4 - 2y) + 4y - 14 = 0
20 - 10y + 4y - 14 = 0
6 - 6y = 0
y
6y = 6
y = 1
x = 4 - 2*(1)
x = 4 - 2
x = 2
Ответ: x = 2, y = 1