Which statements about the system {2x+3y=64x+6y=12\begin{cases} 2x + 3y = 6 \\ 4x + 6y = 12 \end{cases}{2x+3y=64x+6y=12 are true?
The system has exactly one solution
Both equations represent the same line
The system has infinitely many solutions
The lines are perpendicular