Go: package main

import (
	"fmt"
)

func main() {
	for {
		var a, b, c, d, e, f float64
		i, _ := fmt.Scan(&a, &b, &c, &d, &e, &f)
		if i == 0 {
			break
		}

		y := (c*d - a*f) / (b*d - a*e)
		x := (c - b*y) / a

		fmt.Printf("%.3f %.3f\n", x, y)
	}
}

C++: #include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
using namespace std;
typedef long long ll;
typedef vector<int> vint;
typedef pair<int, int> pint;
#define MOD 1000000007 //10^9+7
#define INF 1000000000 //10^9

double round3(double x);
pair<double, double>equ2(int a,int b,int c,int d,int e,int f);

pair<double, double>equ2(int a,int b,int c,int d,int e,int f){
    double det=1.0/(a*e-b*d);
    double x=(double)(c*e-b*f)*det;
    double y=(double)(a*f-c*d)*det;
    if (x==-0) x=0;if (y==-0) y=0;
    return pair<double, double>(round3(x),round3(y));
}

double round3(double x){
    if(x>=0) return floor((x+0.0005)*1000)/1000.0;
    return -1*floor((-1*x+0.0005)*1000)/1000.0;
}

int main ()
{
    string str;
    while (!cin.eof()) {
        int a,b,c,d,e,f;
        
        cin>>a>>b>>c>>d>>e>>f;
        
        pair<double,double> ans=equ2(a,b,c,d,e,f);
        
        printf("%.3f %.3f\n",ans.first,ans.second);
    }
    return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <cmath>

using namespace std;

int main()
{
	double x, y, det;
	vector<double> a(3);
	vector<double> b(3);
	while(1)
	{
		for (int i = 0; i < 3; i++)
		{
			cin >> a[i];
		}
		for (int i = 0; i < 3; i++)
		{
			cin >> b[i];
		}
		if (cin.eof())
		{
			break;
		}
		det = a[0] * b[1] - a[1] * b[0];
		x = (b[1] * a[2] - b[2] * a[1]) / det + 0;
		y = (-a[2] * b[0] + a[0] * b[2]) / det + 0;
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}
}

C++: #include <stdio.h>

double sishagonyu(double num)	{
	
	int num2;
	
	if (num == 0) return num;
	if (num > 0) { 
		num += 0.0005;
	} else {
		num -= 0.0005;
	}
	/*
	num *= 1000;
	num2 = (int)num;
	num = num2;
	num /= 1000;
	*/
	return num;
}

int main() {
	
	double a, b, c, d, e, f;	//scanf
	double x, y;							//ans
	
	double n = 0, m = 0, j = 0, h = 0, i = 0;						//temp
	
	while(scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) != EOF){
		
		//if (scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) == EOF) break;
		
		//printf("%lf %lf %lf\n%lf %lf %lf\n", a, b, c, d, e, f);	//input
		
		n = a / d;
		
		j = d * n;
		h = e * n;
		i = f * n;
		
		//printf("%lf %lf %lf\n%lf %lf %lf\t\t%lf\n", a, b, c, j, h, i, n);
		
		m = b - h;
		y = c - i;
		//printf("%lf %lf\n", m, y);
		
		if(y != 0) y /= m;
		//printf("%lf\n", y);
		
		i = c - (b * y);
		x = i / a;
		
		//printf("x = %lf, y = %lf\n", x, y);
		
		x = sishagonyu(x);
		y = sishagonyu(y);
		
		//printf("%lf %lf\n", x, y);
		printf("%.3lf %.3lf\n", x, y);
			}
	return 0;
}

//1 2 3 4 5 6
//-1.000 2.000

//2 -1 -2 -1 -1 -5
//1.000 4.000

//2 -1 -3 1 -1 -3
//0.000 3.000

// 2 -1 -3 -9 9 27
// 0.000 3.000

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

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

C++: #include<iostream>
#include<string>
#include<stdio.h>
#include<cctype>
#include<algorithm>
#include<climits>
#include<cmath>
#include<map>
#include<vector>
#define INF INT_MAX
using namespace std;

double a, b, c, d, e, f;
double x, y;
double A;

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

	return 0;
}

C++: #include <algorithm>
#include <map>
#include <vector>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstring>
#include <cctype>
#include <cstdlib>
#include <cmath>
#include <string>
#include <queue>
using namespace std;

#define REP(i,n) for(int i=0; i<n; ++i)
#define IREP(it,array) for(vector<int>::iterator it=array.begin(); it!=array.end(); ++it)
#define SREP(it,array) for(vector<string>::iterator it=array.begin(); it!=array.end(); ++it)
#define MP make_pair

double rou(double d){
  if( abs(d) < 0.0001)
    return 0.0;
  return d;
}

int main()
{
  cout.setf(ios::fixed, ios::floatfield);
  cout.precision(3);

  int INF = 1000000;

  int a,b,c,d,e,f;
  while(cin>>a>>b>>c>>d>>e>>f){
    cout << rou((double)(c*e-b*f)/(a*e-b*d)) << " "
	 << rou((double)(c*d-a*f)/(b*d-a*e)) << endl;
  }


  return 0;
}

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

string toStr(int n);
string intToString(int n);

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

  while(cin >> a >> b >> c >> d >> e >> f) {
    a = a * 10000;
    b = b * 10000;
    c = c * 10000;
    d = d * 10000;
    e = e * 10000;
    f = f * 10000;
    
    int x, y;
    int det = a * e - b * d;

    x = ( e * c - b * f) / det;
    y = (-d * c + a * f) / det;

    cout << toStr(x) << " " << toStr(y) << endl;
  }
}

string toStr(int n) {
  int ipart = n / 10000;
  int fpart = (n - ipart * 10000) + 5;
  return intToString(ipart) + "." + intToString(fpart).substr(0, 3);
}

string intToString(int n) {
  stringstream ss;
  ss << n;
  return ss.str;
}

C++: #include<iostream>
#include<iomanip>
#include<vector>
#include<map>
#include<string>
using namespace std;
/*
??£???????¨????
	ax + by = c
	dx + ey = f
????§£x, y???????????????????????°??????
*/
int main() {
	double a, b, c, d, e, f;
	int cnt = 0;						//??\??????????????£???????¨????????????°
	std::vector<double> x_vector;		//x????§£???????´?
	std::vector<double> y_vector;		//y????§£???????´?

#if 0
	while (cnt < 2) {
		cin >> a >> b >> c >> d >> e >> f;
#else
	while (cin >> a >> b >> c >> d >> e >> f) {
#endif
		double x = (b * f - c * e) / (b * d - a * e);
		double y = (c * d - a * f) / (b * d - a * e);

		cnt++;
		x_vector.push_back(x);
		y_vector.push_back(y);
	}

	for (unsigned int i = 0; i < cnt; i++) {
		int dummy_x = x_vector[i];		//?????£????????????????°???°?????\?????????
		int dummy_y = y_vector[i];		//?????£????????????????°???°?????\?????????

		//x?????????????°???°????¬¬4???????????¨?????\
		if (5 <= (x_vector[i] * 10000 - dummy_x * 10000)) {
			x_vector[i] += 0.001;
		}

		//y?????????????°???°????¬¬4???????????¨?????\
		if (5 <= (y_vector[i] * 10000 - dummy_y * 10000)) {
			y_vector[i] += 0.001;
		}

		std::cout << std::fixed;
		std::cout << std::setprecision(3) << x_vector[i] << " ";
		std::cout << std::setprecision(3) << y_vector[i] << endl;
		//???????????°
		//std::cout << std::setprecision(3) << x_vector[i] * 10000 << " ";
		//std::cout << std::setprecision(3) << y_vector[i] * 10000 << endl;
		//end???????????°
	}

	//???????????°
	//while (1);

	return 0;
}

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

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

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