2)-51 - 18 - 29 + 11 +51 +29

2) -51 - 18 - 29 + 11 + 51 + 29 = -69 - 29 + 11 + 51 + 29 = -98 + 11 + 51 + 29 = -87 + 51 + 29 = -36 + 29 = -7