Equality comparison between multiple variables

Question

I\'ve a situation where I need to check whether multiple variables are having same data such as

var x=1;
var y=1;
var z=1;

I want to check

Answer 1

Slight variation on the excellent answer given by jevakallio above. See if myValue is equal to any of the values in a list (in the array):

if (new[] { 10, 11, 12 }.Any(x => x == myValue))