The graph of \(y = f(x)\) is transformed to the graph of \(y = f(2x) - 3\).

(a) Describe fully the two single transformations that have been combined to give the resulting transformation.

(b) The point \(P(5, 6)\) lies on the transformed curve \(y = f(2x) - 3\). State the coordinates of the corresponding point on the original curve \(y = f(x)\).