What's can I show?
Directions: Read and understand the following problem.
1. Jessica found 62 seashells on the beach; she gave Melanie some of her seashells.
Write an algebraic expression for the number of seashells, let x be the variable for the
seashells
2. Melanie has 11 books in her library. She bought several books at a yard sale over the
weekend. She now has 78 books in her library. How many books did she buy at the
yard sale?
Write an algebraic equation for this problem. Let b the variable for the unknown
number of books​