Explanation: The solution of the system is the order pair that satisfies both equations. The first given equation is: x = y - 3 This can be written as: y = x+3 .......> I
The second given equation is: x^2 - 6x + 13 = y .........> II
Substitute with I in II and solve for x as follows: x^2 - 6x + 13 = y x^2 - 6x + 13 = x + 3 x^2 - 6x + 13 - x - 3 = 0 x^2 - 7x + 10 = 0 (x-5)(x-2) = 0 either x = 5 or x = 2
Substitute with x in equation I to get y as follows: at x = 5 : y = 5+3 = 8...> first solution is (5,8) at x = 2 : y = 2+3 = 5...> second solution is (2,5)