Assignment with a Returned Value...?

JavaScript
1

Tell us what’s happening:
Hello,
I am totally confused. I don’t get this topic AT ALL!
I copied the “hint” answer, but don’t understand what this is all about.
I’ve been matriculating so far…but this one…oy vey!
Can someone explain this to me in hard core laymen nubie code language, please?
Thanks,
Cheyena

Your code so far

// Example
var changed = 0;

function change(num) {
  return (num + 5) / 3;
}

changed = change(10);

// Setup
var processed = 0;

function processArg(num) {
  return (num + 3) / 5;
}

// Only change code below this line
processed = processArg(7);

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:55.0) Gecko/20100101 Firefox/55.0.

Link to the challenge:

2

I’ve seen a fcc video which explained about function and i think it could help to understand about javascript function.