Two trains, train A and train B, weigh a total of 526 tons. Train A is heavier than train B. The difference of their weights is 368 tons. what is the weight of each train? How much does train A weigh?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?