= = + 2 = 2 × ( + 2) + 2 = 2 + 4 + 2 − 2 = 2 + 4 − 2 = 2 + 2 = 3 − 8 = 2 + 2 = 3 − 8 = 2 + 2 3 − 8 = 2 + 2 3 − 2 = 2 + 8 = 10 = 3 − 8 = (3 × 10) − 8 = 30 − 8 = 22