Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func main() {
	sc.Split(bufio.ScanWords)
	for {
		data := nextInts(6)
		fmt.Printf("%.3f\n", Round(GetX(data[0], data[1], data[2], data[3], data[4], data[5]), 3))
		fmt.Printf("%.3f\n", Round(GetY(data[0], data[1], data[2], data[3], data[4], data[5]), 3))
	}
}

func GetX(a, b, c, d, e, f float64) float64 {
	return ((c * e) - (b * f)) / ((a * e) - (b * d))
}

func GetY(a, b, c, d, e, f float64) float64 {
	return ((c * d) - (a * f)) / ((b * d) - (a * e))
}

func Round(f float64, places int) float64 {
	shift := math.Pow(10, float64(places))
	return math.Floor(f*shift+.5) / shift
}

func next() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() float64 {
	a, _ := strconv.Atoi(next())
	return float64(a)
}

func nextInts(n int) []float64 {
	a := make([]float64, n)
	for i := 0; i < n; i++ {
		a[i] = nextInt()
	}
	return a
}

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

using namespace std;

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

C++: #include <iostream>
#include <cstdio>
using namespace std;
int main(){

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

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

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

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

int main()
{
	int a, b, c, d, e, f;
	while (cin >> a >> b >> c >> d >> e >> f) {
		double y = (double)(a*f - d*c) / (double)(a*e - b*d);
		double x = (double)(c - b*y) / (double)a;
		printf("%4.3f %4.3f\n", x, y);
	}
    return 0;
}

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

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

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <string>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <sstream>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <numeric>
#include <cmath>
#include <climits>
#include <limits>
#include <cfloat>
#include <fstream>
using namespace std;

int main()
{
//	cut here before submit 
//	freopen("testcase.se2", "r", stdin);
	string str = "";

	while (getline (cin, str )){
		// ax + by = c
		// dx + ey = f
		int a, b, c, d, e, f;
		stringstream ss(str);
		ss >> a >> b >> c >> d >> e >> f;
		// [ a b ][x] = [c]
		// [ d e ][y]   [f]
		// [x] = [e -b][c]
		// [y]   [-d a][f]/D
		double x,y;
		double D = (double)(a*e - b*d);

		y = (double)(-d*c + a*f)/D;
		x = ((double)c - (double)b*y)/(double)a;
		if (fabs(x) < 1.0e-6){
			x = 0.0;
		} // end if
		if (fabs(y) < 1.0e-6){
			y = 0.0;
		} // end if
		cout.setf( ios::fixed ); 
		cout.precision(3);
		cout << x << ' ' << y << endl;
	} // end for

	return 0;
}

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

using namespace std;

double roundOff(double);
int main(void){
	for(int a, b, c, d, e, f; cin >> a >> b >> c >> d >> e >> f;){
		double delta = a * e - b * d;
		double x = roundOff((c * e - b * f) / delta);
		double y = roundOff((a * f - c * d) / delta);

		cout.setf(ios::showpoint);
		cout << setprecision(3) << x << " " << y << endl;
	}
	return 0;
}

double roundOff(double a){
	a*=1000;
	a = int(a + 0.5 - (a < 0));
	a/=1000.;
	return a;
}

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

C++: #include<iostream>
#include<algorithm>
#include<iomanip>
#include<math.h>
using namespace std;
main(){
	double x[2][3],n,ans[2],tmp;
	while(1){
		for(int i=0;i<=1;++i){
			for(int j=0;j<=2;++j){
				cin>>x[i][j];
				ans[i]=0;
			}
		}
		n=x[0][0]*x[1][1]-x[0][1]*x[1][0];
		for(int i=0;i<=1;++i){
			for(int j=0;j<=1;++j){
				x[i][j]/=n;
			}
		}
		double tmp;
		tmp=x[1][1];
		x[1][1]=x[0][0];
		x[0][0]=tmp;
		x[0][1]*=-1;
		x[1][0]*=-1;

		for(int i=0;i<=1;++i){
			for(int j=0;j<=1;++j){
				ans[i]+=x[i][j]*x[j][2];
			}
		}
		cout<<fixed<<setprecision(3)<<ans[0]<<" "<<ans[1]<<endl;
	}
}

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 <iomanip>
using namespace std;

int main(){
	double a[6];
	double x,y;
	cout<< setprecision(4) << setiosflags(ios::showpoint);
	while(true){
		cin >> a[0];
		cin >> a[1];
		cin >> a[2];
		cin >> a[3];
		cin >> a[4];
		cin >> a[5];
		if(cin.eof())
			break;
			
		x = (a[4]*a[2]-a[1]*a[5])/(a[0]*a[4]-a[1]*a[3]);
		y = (-a[3]*a[2]+a[0]*a[5])/(a[0]*a[4]-a[1]*a[3]);
		if(x == 0)
			x = 0;
		if(y == 0)
			 y = 0;
			 
		cout << x << " " << y << endl;
	}
	return 0;
}

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 round3(double dat){

	int fct;
	fct = (int)pow(10, 3);
	dat *= fct;
	dat = round(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) << round3(x1) << " " << round3(y1) << endl;
	cout << fixed << setprecision(3) << round3(x2) << " " << round3(y2) << endl;

	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
	double a[60000]={0};
	int i=0;
	while(cin>>a[i++]);
	int n=i-1;
	for(int j=0;j<n;j+=6){
		double x=0,y=0;
		if(a[j+3]!=0&&a[j]!=0){
			double k=a[j]/a[j+3];
			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];
		}else if(a[j]==0){
			x=a[j+5]/a[j+3];
			y=a[j+2]/a[j+1];
		}else if(a[j+3]==0){
			x=a[j+2]/a[j];
			y=a[j+5]/a[j+4];
		}
		cout<<x<<" "<<y<<endl;
	}
	return 0;
}

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

const double EPS=1e-6;

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