C# - A strange assignment

Question

Why on Earth in this code is y assigned 6? In effect, result is 60.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SoloLearn
{
class Program
{
static int Multi(int a, int b, int c){
return (a * b * c);
}
static void Main(string[] args)
{
int x,y,z;
x = 5;
y = x++; //so, y is assigned 6?
z = x/3;
Console.Write(Multi(x,y,z));
}
}
}

Answer 1

x = 6
y = 5
z = x/3 = 6/3 = 2
6 * 5 = 30
30 * 2 = 60
Why should it be 50

Answer 2

I agree with you but so, Multi should return 50. Instead, it returns 60!

Answer 3

I confused, sorry ☺️

Answer 4

in addtion to ~ swim ~
Y is 5
X is 6
https://code.sololearn.com/c6uy4RskK38L