What type of brewing do you want to do? If you want to concentrate on brewing English style beer using either traditional All Grain Mash and Sparge method then you will need more equipment than if you adopt an all grain
Brew
in
a bag approach. BIAB only requires 1 large boiler (maybe a Burko boiler or Swan boiler or even a Buffalo boiler), they are around £70 then you need to think about a thermometer and a sight glass to fit on the side, you can Mash your grain in the bag in it then remove the grain bag and get it up to a boil then you need at least 1 fermenting vessel (can be a plastic bucket) like
this or you can go for an enclosed FV like
this. The plastic buckets you will need whatever way you decide to go.
Traditional AG brewing requires, generally a 3 vessel approach, a high level tun (HLT), a Mash tun and another boiler. These are arrange on different levels so gravity is used to move the liquor from one vessel to the next unless you go for a pumped system. So you see your simple question has a lot of ramifications and decision points depending on what you want to do. I would council you to take your time and decide how you want to approach this great hobby before you make any commitments.
You can also explore what you can get for either nothing (council re-cycling centres) or (cheap) car boot sales or (again free) at Freecycle. Going this route may help you to explore different things before you commit to any big outlays and help you to start acquiring your equipment.
If you read the posts on here you will find everything you need to consider to make the correct choice for you.