Chapter 4.5, Problem 31MS

Here we celeb rate the power of algebra as a powerful way of finding unknown quarnities by naming them, of expressing infinitely many relationships and connections clearly and succinctly, and of uncovering pattern and structure.

Small again. Let E denote the number of edges and V denote the number of vertices for the solid Small R from Mindscape 30. The values of E and V satisfy the equations $\text{E + 2V = 240 and 3E — V = 300}\text{.}$

Find the values of E and V.