A piece of wire that is 28 inches long is cut into two pieces, each of which is then bent into the shape of a square. The larger square has side lengths that are three inches longer than the smaller square. (a) If x is the side length of the smaller square and y is the side length of the larger square, write a system of equations that models this scenario.

(b) Solve the system of equations and determine the lengths of the two pieces of wire.