using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Karla Rojas\n");

        Console.WriteLine("Equation about X");

        Console.WriteLine("Type a number: ");

        var x=Console.ReadLine();

        var n=int.Parse(x);

        if(n==0){

            n=10-0;

        Console.WriteLine("The value of X is "+ n);

        }

        else if(n==1){

            n=10-10;

        Console.WriteLine("The value of X is "+ n);

        }else if(n==2){

        n=10-9;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==3){

        n=10-8;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==4){

        n=10-7;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==5){

        n=10-6;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==6){

        n=10-5;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==7){

        n=10-4;

        Console.WriteLine("The value of X is "+ n);

        }

        else if(n==8){

        n=10-3;

        Console.WriteLine("The value of X is "+ n);

        }   

        else if(n==9){

        n=10-2;

        Console.WriteLine("The value of X is "+ n);

        }

        else if(n==10){

        n=10-1;

        Console.WriteLine("The value of X is "+ n);

        }   

    }

}

​