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 <iostream>
#include<stdio.h>
using namespace std;

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

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

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

int main(){
	float a,b,c,d,e,f,i,n;
	while(cin >> a >> b >> c >> d >> e >> f){
		printf("%.3f %.3f\n",(c*e-b*f)/(a*e-b*d) ,(c*d-a*f)/(b*d-a*e));
	}
	return 0;
}

C++: // ------------------------------------
// Date:2018/ 2/13
// Problem:0004 : SimulataneousEquation 4.cpp
//
// ------------------------------------
 
#include <bits/stdc++.h>
 
using namespace std;
 
#define FOR(i,a,b) for(int i=(int)a;i<(int)b;++i)
#define REP(i,n) FOR(i,0,n)
 
int main()
{
  double a,b,c,d,e,f;
  while(scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f) != EOF) {
    printf("%.3lf %.3lf\n",(c*e-b*f)/(a*e-b*d), (c*d-a*f)/(b*d-a*e));
  }
  return 0;
}

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

int main() {

//変数の宣言

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

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

C++: #include<iostream>
#include<iomanip>
#include<cstdio>
#include<vector>
#include<algorithm>
#include<cmath>
#include<queue>
#include<stack>
#include<functional>
#include<string>
#include<cstring>
#include <sstream>
using namespace std;
int main(void){
    double a,b,c,d,e,f,x,y;
    while(cin >> a >> b >> c >> d >> e >> f){
        double ad = a / d;
        d *= ad;
        e *= ad;
        f *= ad;
        d -= a;
        e -= b;
        f -= c;
        y = f/e;
        x = (c - b * y)/a;
        y *= 10000;
        y = round(y);
        y /= 10000;
        x *= 10000;
        x = round(x);
        x /= 10000;
        cout << fixed << std::setprecision(3) << x << " " << fixed << std::setprecision(3) << y << endl;
    }
    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)
{
printf("%.3f %.3f\n", (b*f - c*e)/(b*d - a*e)+0.0001, (a*f - c*d)/(a*e - b*d)+0.0001);
}
return 0;
}

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

template<class T> inline void YES(T condition){ if(condition) cout << "YES" << endl; else cout << "NO" << endl; }
template<class T> inline void Yes(T condition){ if(condition) cout << "Yes" << endl; else cout << "No" << endl; }
template<class T> inline void POSS(T condition){ if(condition) cout << "POSSIBLE" << endl; else cout << "IMPOSSIBLE" << endl; }
template<class T> inline void Poss(T condition){ if(condition) cout << "Possible" << endl; else cout << "Impossible" << endl; }
template<class T> inline void First(T condition){ if(condition) cout << "First" << endl; else cout << "Second" << endl; }
int character_count(string text, char character){ int ans = 0; for(int i = 0; i < text.size(); i++){ ans += (text[i] == character); } return ans; }
long power(long base, long exponent, long module){ if(exponent % 2){ return power(base, exponent - 1, module) * base % module; }else if(exponent){ long root_ans = power(base, exponent / 2, module); return root_ans * root_ans % module; }else{ return 1; }}
struct position{ int y, x; }; position move_pattern[4] = {{-1, 0}, {0, 1}, {1, 0}, {0, -1}}; // double euclidean(position first, position second){ return sqrt((second.x - first.x) * (second.x - first.x) + (second.y - first.y) * (second.y - first.y)); }
template<class itr, class func> void array_output(itr start, itr goal, func out = [](itr x) { return x; } ){ string ans; for(auto i = start; i != goal; i++){ ans += to_string(*i) + " "; } ans.pop_back(); cout << ans << endl; }
template<class itr, class func> void nint_output(itr start, itr goal, func out = [](itr x) { return x; } ){ string ans; for(auto i = start; i != goal; i++){ ans += string(out(*i)) + " "; } ans.pop_back(); cout << ans << endl; }
long gcd(long a, long b){ if(a && b){ return gcd(min(a, b), max(a, b) % min(a, b)); }else{ return a; }}
#define mod long(1e9 + 7)
#define all(x) (x).begin(), (x).end()
#define bitcount(n) __builtin_popcount(n)

int main(){
    double a, b, c, d, e, f;
    while(cin >> a >> b >> c >> d >> e >> f){
        cout << fixed << setprecision(10) << (c * e - b * f) / (a * e - b * d) << " " << (a * f - d * c) / (a * e - b * d) << endl;
    }
}

C++: #include <iostream>
#include <cstdio>
int main(){
double a,b,c,d,e,f,x,y;
while(std::cin>>a>>b>>c>>d>>e>>f){
	x = (b*f-c*e)/(b*d-a*e);
	y = (f*a-d*c)/(a*e-b*d);
	printf("%.4f %.4f\n",x==-0.000?0.000:x, y==-0.000?0.000:y);
}
}

C++: #include <iostream>
#include <iomanip>
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);
    x = (x == -0) ? -x : x;
    y = (y == -0) ? -y : y;      
    cout << fixed << setprecision(3) << x << ' ' << fixed << setprecision(3) << y << endl;
  }
}