Why is this code not running ???

Question

I have tried changing int to float , still no luck :(
Every time i get errors like No Output or Compilation Error !!
i tried these equations :
1) First pair of Equations:
2x + y =5
3x +2y =8
2) Second pair of Equations:
x - 3y - 7 = 0
3x - 3y - 15 = 0
While troubleshooting the code if you get the answers of x and y as :
1) x = 2 , y = 1
2) x = 4 , y = -1
Then, Its correct
https://code.sololearn.com/cp3WCz44n1Ny/?ref=app
https://code.sololearn.com/cp3WCz44n1Ny/?ref=app

Answer 1

https://code.sololearn.com/c3TktsNwiX7v/#cpp
Line 18:
cin << c2;
to
cin >> c2;

Answer 2

thx