Go: package main

import "fmt"

func main() {
	var Xs, Ys []float32
	Xs = make([]float32, 0)
	Ys = make([]float32, 0)
	var cnt int
	for {
		var a, b, c, d, e, f, x, y float32
		fmt.Scanf("%f %f %f %f %f %f", &a, &b, &c, &d, &e, &f)
		if a == 0 {
			break
		}
		y = (((a * f) - (d * c)) / ((a * e) - (b * d)))
		x = ((c - (b * y)) / a)
		Xs = append(Xs, x)
		Ys = append(Ys, y)
		cnt++
	}
	for i := 0; i < cnt; i++ {
		fmt.Printf("%.3f %.3f\n", Xs[i], Ys[i])
	}
}

C++: #include <cstdio>
#include <iostream>
#include <iomanip>
#include <string>   
using namespace std;
 
int main(){
	double a,b,c,d,e,f,aa,bb,cc,i = 0,x,y;
	while(cin >> a >> b >> c >> d >> e >> f){
	aa = a;
	bb = b;
	cc = c;
	a = a * d;
	b = b * d;
	c = c * d;

	d = d * aa;
	e = e * aa;
	f = f * aa;

	y = (c - f) / (b - e);
	x = cc - (bb * y);
	x = x / aa;
    cout << fixed << setprecision(3) << x << " " << fixed << setprecision(3) << y << endl;
	}
}

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

using namespace std;

double a, b, c, d, e, f;

double x(double, double, double, double, double, double) {

	return (c*e - b*f) / (a*e - b*d);
}

double y(double, double, double, double, double, double) {

	return (a*f - c*d) / (a*e - b*d);
}

double round(double dat, int keta){
	int fct;

	fct = (int)pow(10, keta - 1);
	dat *= fct;
	dat += (dat < 0) ? -0.5 : 0.5;
	dat = (int)(dat);
	dat /= fct;
	return dat;
}

int main()
{
	double x1, x2, y1, y2;
	cin >> a >> b >> c >> d >> e >> f;

	x1 = x(a, b, c, d, e, f);
	y1 = y(a, b, c, d, e, f);

	cin >> a >> b >> c >> d >> e >> f;

	x2 = x(a, b, c, d, e, f);
	y2 = y(a, b, c, d, e, f);

	cout << fixed << setprecision(3) << round(x1,3) << " " << round(y1,3) << endl;
	cout << fixed << setprecision(3) << round(x2,3) << " " << round(y2,3) << endl;

	return 0;
}

C++: #include<cstdio>
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) != EOF ){
		x = (c*e-b*f)/(a*e-b*d)+0.0;
		y = (c-a*x)/b+0.0;
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

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

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

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

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

	while (1) {
		cin>>a>>b>>c>>d>>e>>f;
		if (cin.eof()) break;

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

		cout<<setiosflags(ios::fixed)<<x<<" "<<y<<endl;
	}

	return 0;
}

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

int main() {
	int a, b, c, d, e, f;
	int cnt = 0;
	std::vector<double> x_vector;
	std::vector<double> y_vector;

	while (cin >> a >> b >> c >> d >> e >> f) {
		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++) {
		std::cout << std::fixed;
		std::cout << std::setprecision(3) << x_vector[i] << " ";
		std::cout << std::setprecision(3) << y_vector[i] << endl;
	}

	return 0;
}

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

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

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

		//	cout << x << endl << y << endl;
		printf("%.3f ",x);
		printf("%.3f\n",y);
	}	
}

C++: #include<iostream>
#include<stdio.h>

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

	scanf("%f%f%f%f%f%f",&a,&b,&c,&d,&e,&f);

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

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

	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
	double a[6000]={0};
	int i=0;
	while(cin>>a[i++]);
	int n=i-1;
	for(int j=0;j<n;j+=6){
		double k=a[j]/a[j+3],x=0,y=0;
		a[j+3]*=k,a[j+4]*=k,a[j+5]*=k;
		y=(a[j+2]-a[j+5])/(a[j+1]-a[j+4]);
		x=(a[j+2]-a[j+1]*y)/a[j];
		cout<<x<<" "<<y<<endl;
	}
	return 0;
}

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

C++: # include <algorithm>
# include <cassert>
# include <cctype>
# include <cstdio>
# include <cstdlib>
# include <cstring>
# include <cmath>
# include <iostream>
# include <map>
# include <queue>
# include <set>
# include <sstream>
# include <stack>
# include <string>
# include <vector>
# include <iomanip>

# define rep(i, n) for (int i = 0; i < (int)(n); i++)
# define irep(i, n) for (int i = int(n) - 1; i >= 0; i--)
# define FOR(i, m, n) for (int i = int(m); i < (int)(n); i++)

using namespace std;
typedef long long ll;


// %% begin matrix %%

typedef vector<double> vec;
typedef vector<vec> mat;

void pretty_print(mat g) {
  rep (i, g.size()) {
    rep (j, g[0].size()-1) {
      cout << g[i][j] << ' ';
    }
    cout << g[i][g[0].size()-1] << endl;
  }
}


mat mul(mat A, mat B) {
  mat C(A.size(), vec(B.size()));
  rep (i, A.size()) {
    rep (k, B.size()) {
      rep (j, B[0].size()) {
        C[i][j] += A[i][k] * B[k][j];
      }
    }
  }
  return C;
}

// %% end matrix %%


vec jordan(mat &A, vec &b) {
  int n = A.size();

  // ?????§?????°??????
  mat B(n, vec(n+1));
  rep (i, n) {
    rep (j, n) {
      B[i][j] = A[i][j];
    }
    B[i][n] = b[i];
  }


  rep (i, n) {
    int pivot = i;

    // ?????????
    for (int j = i; j < n; j++) {
      if (abs(B[j][i]) > abs(B[pivot][i])) {
        pivot = j;
      }
    }
    swap(B[i], B[pivot]);

    if (abs(B[i][i]) < 0.0000001) {
      return vec();
    }

    for (int j = i+1; j <= n; j++) B[i][j] /= B[i][i];
    rep (j, n) {
      if (i != j) {
        for (int k = i+1; k <= n; k++) {
          B[j][k] -= B[j][i] * B[i][k];
        }
      }
    }
  }

  vec x(n);
  rep (i, n) {
    x[i] = B[i][n];
  }

  return x;
}




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

  while (cin >> a >> b >> c >> d >> e >> f) {

    mat A = {
      {a, b},
      {d, e}
    };

    vec B = {
      c, f
    };

    vec x = jordan(A, B);
    // cout << x[0] << " " << x[1] << endl;
    printf("%4.3f %4.3f\n", x[0], x[1]);
  } 
}

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

int main() {
    string line;
    while (getline(cin, line)) {
        int a, b, c, d, e, f;
        stringstream ss(line);
        ss >> a >> b >> c >> d >> e >> f;

        double x = 0.0;
        if (c*e != b*f)
            x = static_cast<double>(c*e - b*f) / (a*e - b*d);
        double y = static_cast<double>(c - a*x) / b;
        cout.setf(ios_base::fixed, ios_base::floatfield);
        cout << std::setprecision(3) << x << " " << y << endl;
    }
}

C++: #include<iostream>
#include<string>
#include<iomanip>
using namespace std;
int main(){
    double a,b,c,d,e,f,x,y;
    while(cin>>a){
        cin>>b>>c>>d>>e>>f;
        x=(c*e-b*f)/(a*e-b*d);
        y=(c*d-a*f)/(b*d-a*e);
        if(x==-0)
            x=0;
        if(y==-0)
            y=0;
        cout<<fixed<<setprecision(3)<<x<<" ";
        cout<<fixed<<setprecision(3)<<y<<endl;
    }
    return 0;
}

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

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 * e - b * f) / (a * e - b * d);
		printf("%.3f %.3f\n", x, y);
	}

	return 0;
}