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

There is how I did this:

Debug.Assert(new List { l1.Count, l2.Count, l3.Count, l4.Count }.TrueForAll(
  delegate(int value) { return value == l1.Count; }), "Tables have different size.");