Go: package main

import (
        "fmt"
        "bufio"
        "os"
        "math"
)

func main() {
        var a, b, c, d, e, f float64
        sc := bufio.NewScanner(os.Stdin)
        for sc.Scan() {
                fmt.Sscanf(sc.Text(), "%f %f %f %f %f %f", &a, &b, &c, &d, &e, &f)

                det := a*e - b*d
                x := (e*c - b*f) / det
                y := (a*f - c*d) / det
                if x == 0.0 {
                        x = math.Abs(x)
                }
                if y == 0.0 {
                        y = math.Abs(y)
                }
                fmt.Printf("%.3f %.3f\n", x, y)
        }
}

C++: #include <bits/stdc++.h>
using namespace std;
//#include <boost/multiprecision/cpp_int.hpp>
//using multiInt = boost::multiprecision::cpp_int;

using ll = long long int;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
template<typename Q_temp>
using smaller_queue = priority_queue <Q_temp, vector<Q_temp>, greater<Q_temp> >;

const int INF = (int) 1e9;
const ll LINF = (ll) 4e18;
const ll MOD = (ll) (1e9 + 7);
const double PI = acos(-1.0);
const int limit = 100010;

#define REP(i,m,n) for(ll i = m; i < (ll)(n); ++i)
#define rep(i,n) REP(i, 0, n)
#define MP make_pair
#define MT make_tuple
#define YES(n) cout << ((n) ? "YES" : "NO") << endl
#define Yes(n) cout << ((n) ? "Yes" : "No") << endl
#define Possible(n) cout << ((n) ? "Possible" : "Impossible") << endl
#define all(v) v.begin(), v.end()
#define NP(v) next_permutation(all(v))
#define dbg(x_) cerr << #x_ << ":" << x_ << endl;
#define dbg2(x_) for(auto a_ : x_) cerr << a_ << " "; cerr << endl;
#define dbg3(x_ , sx_) rep(i, sx_) cerr << x_[i] << " "; cerr << endl;
vector<int> Dx = {0, 0, -1, 1, -1, 1, -1, 1, 0};
vector<int> Dy = {1, -1, 0, 0, -1, -1, 1, 1, 0};

inline ll CEIL(ll a, ll b) {
    return (a + b - 1) / b;
}

//------------------------------------------------------

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    double a, b, c, d, e, f;
    while (cin >> a >> b >> c >> d >> e >> f) {
        double x = (c * e - b * f) / (a * e - b * d);
        double y = (c * d - a * f) / (b * d - a * e);
        cout << fixed << setprecision(3) << x << " " << y << endl;
    }

    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long int ll;
typedef pair<int,int> P;
const ll MOD=1000000007;
const ll INF=1000000010;
const ll LINF=4000000000000000010LL;
const int MAX=310;
const double EPS=1e-8;
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};
int main(){
    double a,b,c,d,e,f;
    while(cin>>a>>b>>c>>d>>e>>f){
        double y=(a*f-c*d)/(a*e-b*d);
        double x=(-b*y+c)/a;
        x*=1000;
        printf("%.3f\n",round(x)/1000);
        y*=1000;
        printf("%.3f ",round(y)/1000);
    }
}

C++: #include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main() {
	int a, b, c, d, e, f;

	while (cin >> a >> b >> c >> d >> e >> f) {
		double x, y;
		x = (double)(b*f - c*e) / (b*d - a*e);
		y = (double)(c - a*x) / b;
		if (fabs(x) < 1e-6) x = 0;
		if (fabs(y) < 1e-6) y = 0;
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}
	return 0;
}

C++: #include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <deque>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <bitset>
#include <algorithm>
#include <numeric>
#include <complex>
#include <functional>
#include <utility>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>

using namespace std;

#define debug(n) cout<<"# "<<#n<<": "<<(n)<<endl
#define repi(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,n) repi(i,0,n)
#define iter(c) __typeof((c).begin())
#define tr(c,i) for(iter(c) i=(c).begin();i!=(c).end();i++)
#define allof(c) (c).begin(),(c).end()
#define mp make_pair

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;

// (a b)(x) (c)
// (d e)(y) (f)
int main()
{
	for(double a,b,c,d,e,f;cin>>a>>b>>c>>d>>e>>f;){
		double x=(c*e-b*f)/(a*e-b*d);
		double y=(a*f-c*d)/(a*e-b*d);
		printf("%.3f %.3f\n",x,y);
	}
	
	return 0;
}

C++: #include <iostream>
#include <cstdio>

int main(int argc, const char * argv[])
{
    double a, b, c, d, e, f, x, y;
    //cin >> a >> b >> c >> d >> e >> f
//    while (scanf("%lf %lf %lf %lf %lf %lf ", &a, &b, &c, &d, &e, &f) != EOF) {
    
    while (std::cin >> a >> b >> c >> d >> e >> f) {
        x = y = 0;
        x = (b*f - c*e) / (b*d - a*e);
        y = ((a*b*f - a*c*e) / (a*b*e- b*b*d) + c / b);
        printf("%.3f %.3f\n", x, y);
    }
    
    return 0;
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;

int main() {
	double a = 0, b = 0, c = 0, d = 0, e = 0, f = 0;
	double x, y;
	while (cin >> a >> b >> c >> d >> e >> f) {
		cout << a << endl;
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
    int a, b, c, d, e, f;
    double x, y;
    double t;

    while(cin >> a >> b >> c >> d >> e >> f){
        t = a*e - b*d;
        x = (e*c - b*f) / t + 0.0;
        y = (a*f - d*c) / t + 0.0;

        printf("%f %f\n", x, y);
    }

    return 0;
}

C++: #include <cstdio>
 
int main(void)
{
    double a, b, c, d, e, f;
 
    while (scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) != EOF){
        double y = (d * c - a * f) / (d * b - a * e);
        double x = (c - b * y) / a;
        printf("%.3f %.3f\n", x, y);
    }
 
    return 0;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;

void OutputSolution(int a, int b, int c, int d, int e, int f)
{
    double x, y;
	if(b == 0){
		x = c / a;
		y = (f-d*x) / e;
	}else{
		int B = b;
		a *= e;
		b *= e;
		c *= e;
		d *= B;
		e *= B;
		f *= B;
		x = (c-f) / (a-d);
		y = (c-a*x) / b;
	}
	if(x == -0) x = 0;
	cout << fixed << setprecision(3) << x << ' ' << y << endl;
}

int main()
{
	while(true){
		int a, b, c, d, e, f;
		cin >> a >> b >> c >> d >> e >> f;
		if(cin.eof()) break;
		OutputSolution(a, b, c, d, e, f);
	}
	return 0;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(void){
    // Here your code !
    double a, b, c, d, e, f;
    while (cin >> a >> b >> c >> d >> e >> f) {
        double x = (c * e - b * f) / (a * e - b * d);
        double y = (a * f - c * d) / (a * e - b * d);
        x *= 1000; x = x + (x > 0 ? 0.5 : -0.5); x = (int)x;
        y *= 1000; y = y + (y > 0 ? 0.5 : -0.5); y = (int)y;
        //cout << %.3f %.3f\n << x / 1000 << y / 1000 << endl;
        cout << fixed << setprecision(4) << x /1000 << "," << y / 1000 <<endl;
    }
    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl;
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    double a, b, c, d, e, f;
    while (cin >> a >> b >> c >> d >> e >> f)
    {
        double det = a * e - b * d;

        double x = (1 / det) * (e * c - b * f), y = (1 / det) * (-d * c + a * f);
        if (x == 0)
            x = 0;
        if (y == 0)
            y = 0;
        printf("%.3f %.3f\n", x, y);
    }

    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
int main() {
  int a, b, c, d, e, f;
  double x, y;
  while (cin >> a >> b >> c >> d >> e >> f) {
    x = (b * f - c * e) / (b * d - a * e);
    y = (a * f - c * d) / (a * e - b * d);
    printf("%.3f %.3f\n", floor(x * 1000.0) / 1000.0, floor(y * 1000.0) / 1000.0);
  }
  return 0;
}