No clue what its asking

Tell us what’s happening:
hi have no idea what this is asking of me i do not understand the task why is there no video for this or a better explanation!!!
help please

Your code so far

var b=7;// Setup
var a;
a = 7;
var b;

// Only change code below this line

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36.

Challenge: Assigning the Value of One Variable to Another

Link to the challenge:

For one thing, it’s telling you not to change anything above “Only change code below this line”.