Задачи
Формулы Крамера
include <bits/stdc++.h>
using namespace std;
int main() { double a1, b1, c1, a2, b2, c2; cin >> a1 >> b1 >> c1 >> a2 >> b2 >> c2; double d = a1b2-a2b1; double d1 = c1b2-c2b1; double d2 = a1c2-a2c1; cout<<d1/d<<" "<<d2/d; return 0;}
include <bits/stdc++.h>
using namespace std;
int main()
{
double a1, b1, c1, a2, b2, c2;
cin >> a1 >> b1 >> c1 >> a2 >> b2 >> c2;
double d = a1*b2-a2*b1;
double d1 = c1*b2-c2*b1;
double d2 = a1*c2-a2*c1;
cout << setprecision(3) << fixed << d1/d << " " << d2/d;
return 0;
}