Javascript Practice 05: JS Hero - Assign variables

Question: 

Which value does x have after execution of the following code?

let x = 'Laurel';

let y = 'Hardy';

let z = y;

y = x;

x = z;

Answer: 

'Hardy'

x = Laurel

y = Hardy 

z = Hardy

y = Laurel 

Therefore x = z = Hardy

Declaring and Reassigning Variables can be solves if questions are broken down and simplified.