#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])

{

   cout<<"1 dereceden denkem cozme sistemi"<<endl;

   cout<<" denklem ax (islem) b=c seklinde"<<endl;

   cout<<"  toplama islemi icin '+'       "<<endl;

   cout<<"  cikarma islemi icin '-'       "<<endl;

   cout<<"  carpma islemi icin '*'        "<<endl;

   cout<<"  bolme islemi icin '/'         "<<endl;

   cout<<"  ***--- Kullaniniz ***---      "<<endl;

   float a,b,c,d;

   char islem;

   cout<<"denkemi giriniz"<<endl;

   cout<<""<<endl;

   cout<<"a yi giriniz  : ";

   cin>>a;

   cout<<"islemi giriniz: ";

   cin>>islem;

   cout<<"b yi giriniz  : ";

   cin>>b;

   cout<<"sonucu giriniz: ";

   cin>>c;

  switch (islem)

  {

   case  '+':

         //ax+b=c

        d=(c-b)/a;

        cout<<"x in sonucu: "<<d<<endl;

        cout<<"girdiginiz denklem: "<<a<<"x"<<"+"<<b<<" = "<<c<<endl;break;  

   case '-':

        d=(c+b)/a;

        cout<<"x in sonucu : "<<d<<endl;break;

        cout<<"girdiginiz denklem: "<<a<<"x"<<"-"<<b<<" = "<<c<<endl;break;

   case '*':

        //ax*b=c ==> x=(c/b)/a;

        d=(c/b)/a; 

        cout<<"x in sonucu: "<<d<<endl;break;

        cout<<"girdiginiz denklem: "<<a<<"x"<<"*"<<b<<" = "<<c<<endl;break;

   case '/':

        d=(b*c)/a;

        cout<<"x in sonucu: "<<d<<endl;break;   

        cout<<"girdiginiz denklem: "<<a<<"x"<<"/"<<b<<" = "<<c<<endl;break;

  }

    system("PAUSE");

    return EXIT_SUCCESS;

}