7,875 lbs.
Old furniture weighs = 1,123 lbs.
Combined weight of furniture and truck = 8,122 lbs.
New items = 876 lbs.
First, subtract the weight of the old furniture from the combined weight:
8,122 lbs - 1,123 lbs. = 6,999 lbs.
Then, add the weight of the new items:
6,999 lbs + 876 lbs. = 7,875 lbs.