Storing Values with the Assignment Operator need kelp plez

Tell us what’s happening:

Your code so far

// Setup
var a;
var b = 2;

// Only change code below this line

var a = 7;
var b = 7;```
**Your browser information:**

Your Browser User Agent is: ```Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36```.

**Link to the challenge:**
https://www.freecodecamp.org/challenges/storing-values-with-the-assignment-operator