Go: package main

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

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
                fmt.Printf("%04f %04f\n", x, y)
        }
}

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

typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> veci;
typedef vector<ll> vecll;
typedef vector<string> vecs;
template<class T,class U> using Hash=unordered_map<T,U>;

#define REP(i, a, n) for(ll i = a; i < (ll)n; i++)
#define RREP(i, a, n) for(ll i = n-1; i >= (ll)a; i--)
#define rep(i, n) REP(i, 0, n)
#define rrep(i, n) RREP(i, 0, n)
#define MD 1000000007

template<class T> T read(){T a;cin >> a;return a;}
template<class T> void read(T& a){cin >> a;}
template<class T, class ...Args> void read(T& a, Args&... args){cin >> a; read(args...);} 
template<class T> void rarr(T a, int n){for(int i = 0; i < n; i++) {cin >> a[i];}}
template<char c = ' ',class T> void write(T a){cout << fixed << setprecision(4) << a << endl;}
template<char c = ' ',class T,class ...Args> void write(T a, Args... args){cout << fixed << setprecision(4) << a << c; write<c>(args...);}
template<class T> void warr(vector<T> a, const char* c = " "){cout << a[0];for(int i = 1; i < (int)a.size(); i++)cout << c << a[i];cout << endl;;}
template<class T> void warr(T a, int n, const char* c = " "){cout << a[0];for(int i = 1; i < n; i++)cout << c << a[i];cout << endl;}
void split(string s, string delim, veci& result){result.clear();string::size_type pos = 0;while(pos != string::npos){string::size_type p = s.find(delim, pos);if(p == string::npos){result.push_back(atoi(s.substr(pos).data()));break;}else {result.push_back(atoi(s.substr(pos, p - pos).data()));}pos = p + delim.size();}}
void split(string s, string delim, vecs& result){result.clear();string::size_type pos = 0;while(pos != string::npos){string::size_type p = s.find(delim, pos);if(p == string::npos){result.push_back(s.substr(pos));break;}else {result.push_back(s.substr(pos, p - pos));}pos = p + delim.size();}}
ll gcd(ll a, ll b){while(true){ll k = a % b;if(k == 0)return b;a = b;b = k;}}
ll comb(ll n, ll m){ll p=1;m=min(m,n-m);for(ll i=1;i<=m;i++){p*=n-i+1;p/=i;}return p;}

int main(void)
{
    while(!cin.eof()){
        double a[6];
        rep(i,6)cin>>a[i];
        double b[3];
        double p=a[0]/a[3];
        rep(i,3)b[i]=a[i]-a[i+3]*p;
        double resb=b[2]*1000/b[1];
        double resa=(a[2]-a[1]*resb/1000)*1000/a[0];
        resb=floor(resb)/1000.0;
        resa=floor(resa)/1000.0;
        write(resa,resb);
    }
    return 0;
}

C++: #include<iostream>
#include<string>
#include <stdio.h>
#include <math.h>
#include <cctype>
#include<queue>
#include<stack>
#include<cstdio>
using namespace std;
double a,b,c,d,e,f,x,y;
int main(){
	while(cin>>a>>b>>c>>d>>e>>f){
		x=(c*e-f*b)/(a*e-d*b);
		y=(c-a*x)/b;
		printf("%.3f %.3f\n",x+(1e-10),y+(1e-10));
	}
	return 0;
	
}

C++: #include <iostream>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <cmath>
using namespace std;
typedef vector<int> VI;
#define REP( i, m, n ) for ( int i = (int)( m ); i < (int)( n ); ++i )

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    vector<pair<double, double>> answers;

    double a, b, c, d, e, f;
    while (cin >> a >> b >> c >> d >> e >> f) {
        pair<double, double> ans;
        ans.first = (e * c - b * f) / (a * e - b * d) + 0.0;    // -0.000対策
        ans.second = (a * f - d * c) / (a * e - b * d) + 0.0;
        answers.push_back(ans);
    }

    for (auto ans : answers) {
        cout.setf(ios::fixed);
        cout.precision(3);
        cout << ans.first << " " << ans.second << endl;
    }
    
    return 0;
}

C++: #include<stdio.h>
int main(void) {
	int a, b, c, d, e, f, g, h = 0;
	while (scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF)
		for (double x = -1000; x <= 1000; x++)
		{
			for (double y = -1000; y <= 1000; y++)
			{
				if (a*x + b*y == c&&d*x + e*y == f)
				{
					x += 0.0005;
					y += 0.0005;
					printf("%.3f %.3f\n", x, y);
				}
			}
		}
	h++;
	return 0;
}

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

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

int main(){

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

    return 0;
}

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

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

    while(cin >> a >> b >> c >> d >> e >> f){
        double de = (a*e) - (b*d);
        double x = 0;
        double y = 0;
        x = e*c + (-b)*f;
        x /= de;
        y = a*f + (-d)*c;
        y /= de;
        if(x == 0)
            x = 0.000;
        if(y == 0)
            y = 0.000;

        printf("%.3f %.3f\n",x,y);
    }
    return 0;
}

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

int main()
{
	int a, b, c, d, e, f;
	double x, y;
	while (cin >> a >> b >> c >> d >> e >> f)
	{
		b *= d; c *= d;
		e *= a; f *= a;
		b -= e; c -= f;
		y = c*1.0 / b;
		x = (f - e*y)*1.0 / (d*a);
		if (x < 0.0001 && x > -0.0001) x = 0.000;
		if (y < 0.0001 && y > -0.0001) y = 0.000;
		cout << fixed << setprecision(3) << x << " " << fixed << setprecision(3) << y << endl;
	}
	
	return 0;
}

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

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

C++: #include <stdio.h>

main() {
  double a,b,c,d,e,f;
  double x,y;
  while(scanf("%lf %lf %lf",&a,&b,&c)!=EOF) {
    scanf("%lf %lf %lf",&d,&e,&f);
    y = (d*c/a - f) / (d*b/a - e);
    x = f/d - e/d*y;
    printf("%.3lf %.3lf\n",x,y);
  }
}

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

int main(){
  int a,b,c,d,e,f;
  while(cin >> a >> b >> c >> d >> e >> f){
    double x,y;
    if(0 != a * e - d * b){
      x = 1.0 * (e * c - b * f)  / (a * e - b * d);
      y = 1.0 * (a * f - d * c)  / (a * e - b * d);
    }else{
      x = 0;
      y = 0;
    }
    printf("%lf %lf\n", x, y);
  }

}

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

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

	while (cin >> a >> b >> c >> d >> e >> f){
		double x, y;
		x = (c * e - b * f) / (a * e - b * d);
		y = (c - (a * x)) / b;

		printf("%.3f %.3f\n", x, y);
	}

	return (0);
}

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

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

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

int main(){
	double a, b, c, d, e, f;
	double x, y;
	double A, B, C;
	const double p = 0.00000001;

	while (cin >> a >> b >> c >> d >> e >> f){
		A = (a*e) - (b*d);
		B = (c*e) - (b*f);
		C = (a*f) - (c*d);

		x = B / A;
		y = C / A;
		
		if (abs(x) < p) x = 0;
		if (abs(y) < p) y = 0;

		printf("%.3lf %.3lf\n", x, y);
	}
	
	return 0;
}