Setting Up Erlang

Hi everyone i recently came across Erlang on my kali linux terminal so i typed erl and it too the Erlang command line where this line of text was waiting for me:

Eshell V8.2.1 (abort with ^G)

1>

So i tried 1+1 as requested by some pdf tutorials as the first lesson but this came up instead:

Eshell V8.2.1 (abort with ^G)

1> 1+1

1>

I expected 2 as the response so anywhere who can help me out i need to make some quick progress with Erlang and learn