In order to find the number of solutions of this equation, let's try to solve it:
[tex]\begin{gathered} 2x-4=2(x-2) \\ 2x-4=2x-4 \\ 0=0 \end{gathered}[/tex]
Since the final sentece is a true statement, any value of x is a solution to this equation, therefore this equation has infinitely many solutions, so the correct option is the second one.
