@Missmaj1 Yes, it should handle Sims 3, all packs included, quite well. The one thing you'll want to do after you get the laptop is manually limit in-game framerates for 3 (Sims 4 has built-in settings for this) so the laptop's graphics card doesn't overwork itself producing extremely high fps for no reason. This is an issue on almost any laptop capable of running all Sims 3 content on ultra settings or close to it, and certainly any gaming laptop.
If you want help with this process, feel free to ask when you actually have the laptop in hand. Or you can read this post I just wrote for someone else and ask if you have more questions.
https://answers.ea.com/t5/Technical-Issues-PC/Budget-desktop-for-Sims-3/m-p/11775025#M252095