Go: package main

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

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		strNums := strings.Fields(scanner.Text())
		nums := []int{}
		for _, strNum := range strNums {
			num, _ := strconv.Atoi(strNum)
			nums = append(nums, num)
		}
		a := nums[0]
		b := nums[1]
		c := nums[2]
		d := nums[3]
		e := nums[4]
		f := nums[5]
		var mulA, mulD int
		if a < 0 {
			mulA = a * -1
		} else {
			mulA = a
		}
		if d < 0 {
			mulD = d * -1
		} else {
			mulD = d
		}
		a *= mulD
		b *= mulD
		c *= mulD
		d *= mulA
		e *= mulA
		f *= mulA

		if d < 0 {
			d *= -1
			e *= -1
			f *= -1
		}

		bE := b - e
		cF := c - f
		if bE == 0 {
			bE = 1
		}
		y := cF / bE
		x := (c - (y * b)) / a

		fmt.Print(x)
		fmt.Println(".000")
		fmt.Print(y)
		fmt.Println(".000")
	}
}

C++: #include<iostream>
#include<sstream>
#include<string>
#include<algorithm>
#include<cmath>
#include<cstdio>
#include<map>
#include<vector>
#include<queue>
#include<set>
#include<numeric>

using namespace std ;

#define pb(n) push_back(n)
#define fi first
#define se second
#define np string::npos
#define all(r) (r).begin(),(r).end()
#define gsort(st,en) sort((st),(en),greater<int>())
#define vmax(ary) *max_element(all(ary))
#define vmin(ary) *min_element(all(ary))
#define debug(x) cout<<#x<<": "<<x<<endl

#define rep(i,n) for(int i = 0; i < (int)(n);++i)
#define repc(i,a,b) for(int i = (a);i < (int)(b);++i)
#define repi(it,array) for(auto it = array.begin(),end = array.end(); it != end;++it)
#define repa(n,array) for(auto n :(array))

typedef long long ll ;
typedef vector<int> vi ;
typedef vector<ll> vl ;
typedef map<string,int> dict;

constexpr int imax = ((1<<30)-1)*2+1 ;
constexpr int inf = 100000000;
double eps = 1e-10 ;

template <typename T>
void out(vector < T > v)
{
  for(size_t i = 0; i < v.size(); i++)
  {
    debug(v[i]);
  }
}

template<typename T>
string ntos( T i ) {
  ostringstream s ;
  s << i ;
  return s.str() ;
}

template<typename T>
T ston(string str, T n){
  istringstream sin(str) ;
  T num ;
  sin >> num ;
  return num ;
}

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  double a,b,c,d,e,f,x,y;
  while(cin >> a >> b >> c >> d >> e >> f){
    x = (b*f-e*c)/(b*d-e*a) * 10000 ;
    if(x > 0){
      x += 0.5 ;
    }
    else if(x < 0){
      x -= 0.5 ;
    }
    x = (double)((int)(x))/10000.0 ;
    y = (c*d-a*f)/(b*d-e*a) * 10000 ;
    if(y > 0){
      y += 0.5 ;
    }
    else if(y < 0){
      y -= 0.5 ;
    }
    y =(double)((int)(y))/10000 ;
    cout << x << " " << y << endl;
  }
  return 0;
}

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

int main()
{
	double x, y;
	double a, b, c, d, e, f;
	
	while(scanf("%lf", &a) != EOF)
	{
		cin >> b >> c >> d >> e >> f;
		
	x = (c * e - b * f) / (a * e - b * d);
	y = (a * f - c * d) / (a * e - b * d);
	
	cout << setprecision(3);
	cout << setiosflags(ios::fixed);

	cout << x << " " << y << endl;
	}
	return 0;
}

C++: #include <iostream>

using namespace std;

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

C++: 
using namespace std;
#define j bai;
int main() {
	double a, b, c, d, e, y, x, f, bai;
	bool bo = false;
	while (cin >> a >> b >> c >> d >> e >> f) {
		if (a ==0 || b ==0) {
			if (a) {
				y = c / b;
				x = f / d - e*y;
			}
			else if (b) {
				x = a / c;
				y = f / e - d*x;
			}
			bo = true;
		}
		else if (d == 0 || e == 0) {
			if (d) {
				y = f / e;
				x = c / a - d*y;
			}
			else if (e) {
				x = f / d;
				y = f / e - d*x;
			}
			bo = true;
		}
		
		else if (a < d) {
			bai = d / a;
			a *= j;
			b *= j;
			c *= j;
		}
		else {
			bai = a / d;
			d *= j;
			e *= j;
			f *= j;
		}
		if (((a > 0 && d < 0) || (a < 0 && d>0)) && bo==false) {
			y = (c + f) / (b + e);
			x = (c - b*y) / a;
		}
		else if (bo == false) {
			y = (c - f) / (b - e);
			x = (c - b*y) / a;
		}
		if (x == -0.000) {
			x = abs(x);
		}
		if (y == -0.000) {
			y = abs(y);
		}
		printf("%.3lf %.3lf\n", x, y);
	}
	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 = (f - e * y) / d;
		if (fabs(x) > 1e-4) x = 0.0;
		printf("%.3f %.3f\n", x, y);
	}

	return 0;
}

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

int main()
{
	double a[6], x, y;

	while(cin>>a[0]){
		for(int i = 1; i < 6; i++){
			cin>>a[i];
		}
		y = (a[2]*a[3]-a[0]*a[5])/(a[1]*a[3]-a[0]*a[4]);
		x = (a[2]-a[1]*y)/a[0];

		x = ((double)((int)(x*1000+0.5)))/1000;
		y = ((double)((int)(y*1000+0.5)))/1000;

		printf("%.03f %.03f", x, y);
	}
}

C++: #include <iostream>
#include <string>
#include <algorithm>
#include <set>
#include <vector>
#include <cstring>
#include <climits>
#include <queue>
using namespace std;

#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define EPS 1e-9

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

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

#define DEBUG

#ifndef DEBUG 
#define fprintf (void)
#endif 

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

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

C++: #include<stdio.h>
int main(){
    double a,b,c,d,e,f;
    double db,dc,ae,af;
    double ny,n;
    double y;
    double x;
    while(scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f)!=EOF){
        db=d*b;
        printf("[%lf]\n",db);
        dc=d*c;
        printf("[%lf]\n",dc);
        ae=a*e;
        printf("[%lf]\n",ae);
        af=a*f;
        printf("[%lf]\n",af);
        ny=db-ae;
        printf("[%lf]\n",ny);
        n=dc-af;
        printf("[%lf]\n",n);
        y=n/ny;
        x=(c-y*b)/a;
        printf("%lf %lf\n",x,y);
    }
    return 0;
}

C++: #include <iostream>
#include <iomanip>
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-(f-(d/a)*c)/(e-(d/a)*b)*b)/a;
        y = (f-(d/a)*c)/(e-(d/a)*b);
        cout << fixed << setprecision(3) << x << " " << y << endl;
    }
}

C++: //
//  main.cpp
//  Sample
//
//  Created by h3037183 on 2017/07/31.
//  Copyright ?? 2017??´ ?°????. All rights reserved.
//

#include <iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
int main(){
    double a,b,c,d,e,f,x,y;
    cin>>a>>b>>c>>d>>e>>f;
    x=(c*e-b*f)/(a*e-b*d);
    y=(c*d-f*a)/(b*d-a*e);
    if(x==0)x=0;
    if(y==0)y=0;
    printf("%.3lf %.3lf",x,y);
    cout<<endl;
    return 0;
}

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

int main(){
    double a[3],b[3];
    double x=0,y=0;
    while(cin >> a[0] >> a[1] >> a[2] >> b[0] >> b[1] >> b[2]){
        x = (b[1]*a[2] - a[1]*b[2])/(a[0]*b[1] - a[1]*b[0]);
        y = (a[0]*b[2] - a[2]*b[0])/(a[0]*b[1] - a[1]*b[0]);
        cout << fixed << setprecision(3) <<  x << " " << y << endl;
    }
}