Ruby Array .delete : I'm having an issue with the .delete command for ruby arrays. 
I am defining a method that has two arguments (an array and a string) and trying to delete the string from the array.

The test is not passing and here is what I have so far:

    def using_delete(instructors, x="Steven") 
    instructors = ["Josh", "Steven", "Sophie", "Steven", "Amanda", "Steven"] 
    instructors.delete ("Steven"
    instructors 
    end

The test has to show that all instances of "Steven" have been deleted.

Thanks for your help.