For some reason, as if fate won't allow it, I have never fully understood what "in terms of a certain value" meant. For example, in the following problem: One side of a triangle is x inches longer than another side. The ray bisecting the angle formed by these sides divides the opposite side into 3 and 5 inch segments. Find the perimeter IN TERMS OF x. I usually put x on one side of the equation and solve for the other side. However, what does this actually mean?