Solve the following systems of equations:
Adding (1) and (2)
⇒ -226x – 226y = -678
⇒ x + y = 3----- (3)
(1) – (2)
⇒ 530x – 530y = 530
⇒ x – y = 1 ------ (4)
Adding (3) and (4)
⇒ 2x = 4
⇒ x = 2
Thus, y = 1