{x - y = 6
{x+ xy = - 4
{x = 6 +y
{x + xy = - 4
6 + y + (6 + y) * y = -4
y = -5
y = -2
x = 6 - 5
x = 6 - 2
x = 1
x = 4
ответ (1, - 5) ; (4, 2)
{x - y = 6
{x+ xy = - 4
{x = 6 +y
{x + xy = - 4
6 + y + (6 + y) * y = -4
y = -5
y = -2
x = 6 - 5
x = 6 - 2
x = 1
x = 4
ответ (1, - 5) ; (4, 2)