{х=y+3 {y^2-2x=9 {x = y + 3 {y^2 - 2y - 6 - 9 = 0 {x = y + 3 {y^2 - 2y - 15 = 0 Решим второе уравнение: y^2 - 2y - 15 = 0 D/4 = 1 + 15 = 16 y1 = 1 + 4 = 5 => x = 8 y2 = 1 - 4 = -3 => x = 0 (0;-3) and (8;5)