#include <iostream.h> // Zadanie 2.4
#include <iomanip.h>
#include <conio.h>

main()
{
 float a, b, c, x;

 cout << "Program oblicza wartosc x z rownania liniowego ax+b = c." << endl;
 cout << "Podaj a." << endl;
 cin >> a;

 if (a == 0)
 {
  cout << "Niedozwolona wartosc wspolczynnika. Nacisnij dowolny klawisz.";
 }
 else
 {
 cout << "Podaj b." << endl;
 cin >> b;
 cout << "Podaj c." << endl;
 cin >> c;

 x = (c-b)/a;

 cout << fixed;
 cout << setprecision(2);
 cout << "Dla a = " << a << ", b = " << b << ", c = " << c;
 cout << " wartosc x = " << x << "." << endl;
 }

 getch(); // czeka na nacisniecie dowolnego klawisza
}
