(-1;4).
Объяснение:
x = 3-y
2(3-y)-y+6 = 0; 6-2y-y+6 = 0; 12-3y = 0;
3y = 12;
y = 4;
x = 3-y = 3-4 = -1.
(-1;4).
Объяснение:
x = 3-y
2(3-y)-y+6 = 0; 6-2y-y+6 = 0; 12-3y = 0;
3y = 12;
y = 4;
x = 3-y = 3-4 = -1.