Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

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

func main() {
	sc.Split(bufio.ScanLines)
	for sc.Scan() {
		s := strings.Split(sc.Text(), " ")
		a, _ := strconv.ParseFloat(s[0], 64)
		b, _ := strconv.ParseFloat(s[1], 64)
		c, _ := strconv.ParseFloat(s[2], 64)
		d, _ := strconv.ParseFloat(s[3], 64)
		e, _ := strconv.ParseFloat(s[4], 64)
		f, _ := strconv.ParseFloat(s[5], 64)
		x := ((b * f) - (c * e)) / ((b * d) - (a * e))
		y := ((a * f) - (c * d)) / ((a * e) - (b * d))
		if x == 0 {
			fmt.Printf("0.000 %.3f\n", y)
		} else if y == 0 {
			fmt.Printf("%.3f 0.000\n", x)
		} else {
			fmt.Printf("%.3f %.3f\n", x, y)
		}
	}
}

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

int main(){
	double aa, bb, cc, a, b, c, d, e, f, x, y;
	
	while(cin >>a >>b >>c >>d >>e >>f){
		aa = a;
		bb = b;
		cc = c;
		
		b /= a;
		c /= a;
		a /= a;
		e /= d;
		f /= d;
		d /= d;
		
		b -= e;
		c -= f;
		
		y = c / b;
		x = (cc - (bb * y)) / aa;
		
		x = floor(x * 1000 + 0.5) / 1000;
		y = floor(y * 1000 + 0.5) / 1000;
		
		printf("%.3f %.3f\n", x, y);
	}
	
	return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){
  double m[2][2],x[2],y[2],det,i[2][2];
  while(cin >>m[0][0]>>m[0][1]>>y[0]>>m[1][0]>>m[1][1]>>y[1]){
    det = m[0][0]*m[1][1]-m[1][0]*m[0][1];
    i[0][0] = m[1][1]/det;
    i[0][1] = -m[0][1]/det;
    i[1][0] = -m[1][0]/det;
    i[1][1] = m[0][0]/det;
    x[0] = i[0][0]*y[0]+i[0][1]*y[1];
    x[1] = i[1][0]*y[0]+i[1][1]*y[1];
    printf("%.3lf %.3lf\n",x[0],x[1]);
  }
  return 0;
}

C++: #include <stdio.h>
#include<string>
#include<string.h>
#include <math.h>
#include<iostream>
#include <algorithm>
#include <map>
#include <vector>
#include <queue>
using namespace  std;


/*
//my header
#include "define.h"
#include "geometry.h"*/

#define MyAbs(a) ((a)>0?(a):-(a))
#define MyEqualDoule(a,b) (MyAbs(a-b)<1e-6)

void init()
{
#ifdef _WIN32
	freopen("1.txt", "r", stdin);
#endif
}

void func();

int main()
{
	init();
	func();

	return 0;
}


void func()
{
	float a,b,c,d,e,f, x, y;
	while(~scanf("%f%f%f%f%f%f", &a, &b, &c, &d, &e, &f))
	{
		if(MyEqualDoule(a*e-b*d,0))
			x = 0;
		else
			x = (c*e-f*b)/(a*e - b*d);

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

C++: #include <stdio.h>


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

    while (scanf("%lf %lf %lf %lf %lf %lf", 
    &a, &b, &c, &d, &e, &f)==6){
        x = (e*c-b*f)/(a*e-b*d);
        y = (-d*c+a*f)/(a*e-b*d);
        // round
        tmp = (int)(x*1000) % 10;
        if (x<5) x -= tmp/1000;
        if (x>=5) x += (10-tmp)/1000;
        tmp = (int)(y*1000) % 10;
        if (y<5) y -= tmp/1000;
        if (y>=5) y += (10-tmp)/1000;
        // output
        printf("%.3f %.3f\n", x, y);
    }
    return 0;
}

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

using namespace std;

#define rep(i, n) for (int i = 0; i < int(n); ++i)

int main() {
  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);
    if (-0.0005 <= x && x < 0.0005) x = 0;
    if (-0.0005 <= y && y < 0.0005) y = 0;
    printf("%.3f %.3f\n", x, y);
  }
  return 0;
}

C++: #include <stdio.h>

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 ee = e / b, dd = d / a;
    double ax = a * ee, cx = c * ee;
    printf("%.3f ", (cx - f) / (ax - d) == -0 ? 0 : (cx - f) / (ax - d));
    b *= dd, c *= dd;
    printf("%.3f\n", (c - f) / (b - e) == -0 ? 0 : (c - f) / (b - e));
  }
  return 0;
}

C++: #include <math.h>
#include <iostream>
#include <ios>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <string>

#define YES "YES"
#define NO "NO"
#define space ' '

using namespace std;

void func();

int main(void)
{
	
	func();

	return 0;
}

// using matrix	?????????????????´??????
void func()
{
	int a, b, c, d, e, f;
	double x, y;

	while (cin >> a >> b >> c >> d >> e >> f, !cin.eof()){


	//	if ((a*e - d*b) == 0)
		{
		//	cout << 0 << space << 0 << endl;
		}
//		else
		{
			x = (e*c - b*f) / (a*e - d*b);
			y = (-d*c + a*f) / (a*e - d*b);

			cout << fixed << setprecision(3);
			cout << x*0.0005 << space << y+0.0005 << endl;
			cout << dec;
		}
	}
}

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

using namespace std;

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

int main(){
	while (cin >> a >> b >> c >> d >> e >> f){
		y = (c - f*a / d) / (b - e*a / d);
		x = -b / a*y + c / a;
		printf("%.3f %.3f\n", x+0.00005, y+0.00005);
	}
}

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

using namespace std;

int main(){
    double a, b, c, d, e, f,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 == 0){ x = 0; }
        if (y == 0){ y = 0; }
        printf("%.3f %.3f\n", x, y);
    }

    return 0;
}

C++: #include <iostream>
using namespace std;
int main(void){
    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);
        if(x == 0) x = 0;
        if(y == 0) y = 0;
        printf("%.3f %.3f\n",x,y);
    }
    return 0;
}

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

using namespace std;

int main(){
  double a,b,c,d,e,f;
  vector<double> out;
  while (scanf("%f %f %f %f %f %f",&a,&b,&c,&d,&e,&f)!=EOF){
    out.push_back((c*e-b*f)/(a*e-b*d));
    out.push_back((c*d-a*f)/(b*d-a*e));
  }
  for (int i=0;i<out.size();i+=2){
    printf("%f %f\n",round(out[i]*1000)/1000.0,round(out[i+1]*1000)/1000.0);
  }
  return 0;
}

C++: #include<cstdio>
#include<sstream>
#include<cstdlib>
#include<cctype>
#include<cmath>
#include<algorithm>
#include<set>
#include<queue>
#include<stack>
#include<list>
#include<iostream>
#include<fstream>
#include<numeric>
#include<string>
#include<vector>
#include<cstring>
#include<map>
#include<iterator>

#define pi acos(-1)
#define mx 5000005

using namespace std;

int main () {
    double a,b,c,d,e,f;
    while(cin>>a>>b>>c>>d>>e>>f) {
        double l=(a*e)-(b*d);
        double x=((b*-f)-(e*-c))/l;
        double y=((-c*d)-(a*-f))/l;
        if (l==0.0) {
            x=0.0;
            y=0.0;
        }
        printf("%.3lf %.3lf\n",x,y);
    }
    return 0;
}

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

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

	while(cin>>a>>b>>c>>d>>e>>f)
	{
		x=(e*c-b*f)/(a*e-b*d);
		y=(c*d-a*f)/(b*d-a*e);
		x+=0.0005;
		y+=0.0005;

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

//大文字を小文字に変換
/*
for(int i=0;i<inp.size();i++)
if(inp[i]>='A' && inp[i]<='Z')
inp[i]+='a'-'A';
*/