Find the number of solutions of $|2x - [x]| = 4$, where $[x]$ denotes the greatest integer function. (A) 2 (B) 3 (C) 4 (D) Infinitely many
(D) Four solutions: $x = 3.5,\ 4,\ -4.5,\ -4$
Find the number of solutions of $|2x - [x]| = 4$, where $[x]$ denotes the greatest integer function.
(A) 2 \quad (B) 3 \quad (C) 4 \quad (D) Infinitely many