Step 1: Understand receiver design.
In AM, the carrier signal is transmitted with the modulated signal, leading to more complex receivers. Conversely, SSB modulation with carrier suppression omits the carrier, which simplifies receiver design and lowers costs.
Step 2: Analyze the statement for correctness.
Therefore, a suppressed carrier system's receiver is simpler and less expensive compared to an AM system's receiver.
Final Answer: \[\boxed{(3) \, \text{The receiver of a suppressed carrier system is simpler and cheaper than that of the AM system.}}\]