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

C++: #define _CRT_SECURE_NO_WARNINGS
#include <queue>
#include <set>
#include <map>
#include <list>
#include <stack>
#include <cmath>
#include <functional>
#include <ctype.h>
#include <ctime>
#include <cstdio>
#include <vector>
#include <string>
#include <bitset>
#include <cctype>
#include <cstdlib>
#include <cstring>
#include <utility>
#include <numeric>
#include <complex>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <cassert>
#include <iterator>
#include <algorithm>
#include <iostream>

#define aLL(g) (g).begin(),(g).end()
#define REP(i, x, n) for(int i = x; i < n; i++)
#define rep(i,n) REP(i,0,n)
#define F(i,j,k) fill(i[0],i[0]+j*j,k)
#define P(p) cout<<(p)<<endl;
#define EXISt(s,e) ((s).find(e)!=(s).end())
#define INF 1<<25
#define MAX 100000000
#define PI 3.14159265258979
#define pb push_back
#define mp make_pair
using namespace std;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<double> vd;
typedef pair<int, int> pii;
typedef pair<long, long> pll;
typedef long long ll;
int dx[] = { 0, 1, 0, -1 };
int dy[] = { -1, 0, 1, 0 };

int sttoi(std::string str) {
	int ret;
	std::stringstream ss; ss << str;
	ss >> ret;
	return ret;
}

int gcd(int a, int b){
	if (b > a)swap(a, b);
	if (b == 0)return a;
	return gcd(b, a%b);
}

void solve() {
	int a, b, c, d, e, f;
	double x, y;
	while (scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f) != -1){
	y = (double)(d*c - a*f) / (double)(b*d - a*e);
	x = (double)(c - b*y) / (double)a;
	x *= 1000;
	y *= 1000;
	x = round(x);
	y = round(y);
	x /= 1000;
	y /= 1000;
	cout << setprecision(8) << fixed << x << " " << y << endl;
	}
}

int main() {
	solve();
	return 0;
}

C++: #include<stdio.h>
int main(void){

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

	while(scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) != EOF){
		 
	 
	 if ( (a > 0 && d < 0)|| (a > 0 && d > 0)) {
		A = c*d - f*a;
		B = b*d - e*a;
        y = A / B;
    }
    
    else if ((a < 0 && d > 0) || (a < 0 && d < 0)) {
		A = c*d + f*a;
		B = b*d + e*a;
        y = A / B;
    }
	
    x = (c - y * b) / a;
	printf("%.3lf %.3lf\n" ,x , y);
	}
	return 0;

}

C++: #include <cstdio>

int main() {
	using namespace std;
	for (;;) {
		double a, b, c, d, e, f;
		if (scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) == EOF) { break; }

		double detA = (double)(a * e - b * d);
		if (detA == 0) { break; }
		double x = (double)(e * c - b * f) / detA;
		if (x <= 0 && x > -5e-4) { x = 0; }
		double y = (double)(-d * c + a * f) / detA;
		if (y <= 0 && y > -5e-4) { y = 0; }
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

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

int main(void) {
	int a, b, c, d, e, f;
	cout << fixed << setprecision(3);
	while (scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF) {
		double x = (double)(c * e - f * b) / (a * e - d * b);
		if (abs(x) < 0.001) x = 0;
		double y = (c - a * x) / b;
		cout << x << " " << y << endl;
	}
}

C++: const int tt = 10000;

#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) {
    c = c * tt;
    f = f * tt;

    int det = a * e - b * d;

    int x = ( e * c - b * f) / det;
    int y = (-d * c + a * f) / det;
    cout << toStr(x) << " " << toStr(y) << endl;
  }
}

string toStr(int n) {
  string pm, val;
  
  if (n < 0) {
    pm = "-";
    n = -n;
  } else {
    pm = "";
  }

  int ipart = n / tt;
  int fpart = (n - ipart * tt) + tt + 5;

  val = pm + intToString(ipart) + "." + intToString(fpart).substr(1, 3);
  return val;
}

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

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

#define MAX 256

int main(void){

	float a, b, c, d, e, f;
	float ansx[MAX], ansy[MAX];

	int i = 0;

	while (scanf("%f%f%f%f%f%f%f", &a,&b,&c,&d,&e,&f) != EOF){
		if (a*e != b*d){
			ansx[i] = (c*e - b*f) / (a*e - b*d);
			ansy[i] = (c*d - a*f) / (b*d - a*e);
			if (((int)(ansx[i] * 10000) % 10) > 4 || ((int)(ansx[i] * 10000) % 10) < -4){
				ansx[i] += 0.001;
			}
			if (((int)(ansy[i] * 10000) % 10) > 4 || ((int)(ansx[i] * 10000) % 10) < -4){
				ansy[i] += 0.001;
			}
		}
		i++;
	}

	if (i == 0)printf("\n");

	for (int j = 0; j < i; j++){
		printf("%.3f %.3f\n", ansx[j], ansy[j]);
	}
	
	return 0;
}

C++: #include<cstdio>
double a,b,c,d,e,f;
void C(double *p,double *q)
{
    double t=*p;
    *p=*q;
    *q=t;
}
int main()
{
    while(scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f)==6)
    {
        if(a==0)
        {
            C(&a,&d);
            C(&b,&e);
            C(&c,&f);
        }
        double x,y=(f-d*c/a)/(e-b*d/a);
        x=c/a-b*y/a;
        printf("%.3lf %.3lf\n",x,y);
    }
    return 0;
}

C++: #include <iostream>
#include <stdio.h>
#include <iomanip>
//#include <vector>
//#include <string>
//#include <algorithm>
//#include <functional>

using namespace std;

int main(){

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

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



	return 0;
}

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

double Round4(double r){
    //double s=r;
    r=(int)round(r*1000);
    r=(double)r/1000;
    return(r);
}

int main(){
    double a,b,c,d,e,f;
    double x,y;
    while(cin>>a>>b>>c>>d>>e>>f){
        x=Round4((c*e-f*b)/(a*e-d*b));
        y=Round4((c*d-f*a)/(b*d-e*a));
        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 x, y;
    y = (((a * f) - (d * c)) / ((a * e) - (b * d)));
    x = (c - (b * y)) / a;

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

  return 0;
}