Go: package main

import (
  "fmt"
)

func main() {
  var a,b,c,d,e,f float64
  var x,y float64
  for _, err := fmt.Scan(&a, &b, &c, &d, &e, &f); err == nil;
   _, err = fmt.Scan(&a, &b, &c, &d, &e, &f) {
    y = (a*f-c*d)/(a*e-b*d)
    x = (c-b*y)/a
    fmt.Printf("%.3f %.3f\n", x,y)
  }
}

C++: #include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <climits>
#include <cmath>
#include <complex>
#include <map>
#include <set>
#include <vector>
#include <stack>
#include <queue>
#include <bitset>
#include <algorithm>
#include <numeric>
#include <functional>
#include <cassert>
#include <iomanip>
using namespace std;

#define Rep(b, e, i) for(int i = b; i <= e; i++)
#define Repr(e, b, i) for(int i = e; i >= b; i--)
#define rep(n, i) Rep(0, n-1, i)
#define repr(n, i) Repr(n-1, 0, i)
#define all(v) (v).begin(), (v).end()
#define pb(v) push_back(v)
#define uniq(v) (v).erase(unique(all(v)),(v).end())
#define bitcnt(x) __builtin_popcount(x)
#define fst first
#define snd second
#define Pqaz(T) priority_queue<T,vector<T>,greater<T>>
#define Pqza(T) priority_queue<T>
#define put(x) cout << x;
#define putsp(x) cout << x << ' ';
#define putbd cout << "---------------------------------------------" << endl;
#define putln(x) cout << x << endl;
#define debug(x) cerr << #x << "=" << x << endl;
#define ENJYU std::ios::sync_with_stdio(false);std::cin.tie(0);
#define yuiyui 0

typedef long long ll;
typedef unsigned long long ul;
typedef pair<int, int> intP;
typedef pair<ll, ll> llP;
typedef pair<ul, ul> ulP;
typedef complex<double> comp;
typedef vector <int> vec;
typedef vector <ll> vecll;
typedef vector <ul> vecul;
typedef vector <double> vecd;
typedef vector <vec> mat;
typedef vector <vecll> matll;
typedef vector <vecul> matul;
typedef vector <vecd> matd;

//vector の中身を出力
template <class T>ostream &operator<<(ostream &o,const vector<T>&v)
{o<<"{";for(int i=0;i<(int)v.size();i++)o<<(i>0?", ":"")<<v[i];o<<"}";return o;}

const int MAX = 200020;
const double PI = 3.14159265358979323846;
const double EPS = 1e-12;
const int INF = 1<<29;
const ll INFL = 1e18;
const ll MOD = 1e9+7;

const int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
//const int dx[]={-1,-1,-1,0,1,1,1,0},dy[]={-1,0,1,1,1,0,-1,-1};

//********************************template END****************************************//

void solve(void){

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

	while(~scanf("%lf%lf%lf%lf%lf%lf\n", &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);

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

	}

}

int main(void)
{
	solve();
	//cout << "yui(*-v・)yui" << endl;
	return yuiyui;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(void){
    int a,b,c,d,e,f,g,x,y;
    double ansX,ansY;
    while(std::cin >> a >> b >> c >> d >> e >> f ){
        y = -d * b + e;
        g = d * c * -1 + f;
        
        ansY = g / y;
        
        x = b * ansY * -1;
        
        ansX = c + x;
        
        std::cout<< fixed<< setprecision( 3 )<< ansX<< " "<<ansY<< std::endl;
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
	double a, b, c, d, e, f, x, y, t;
	while(cin >> a >> b >> c >> d >> e >> f) {
		t = 1.0 / (a*e - b*d);
		x = (e*c - b*f) * t;
		y = (a*f - d*c) * t;
		cout << x << setprecision(3) << y << setprecision(3) << endl;
	}
	return 0;
}

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

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

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

void OutputSolution(int a, int b, int c, int d, int e, int f)
{
    double x, y;
	if(b == 0){
		x = c / a;
		y = (f-d*x) / e;
	}else{
		int B = b;
		a *= e;
		b *= e;
		c *= e;
		d *= B;
		e *= B;
		f *= B;
		x = (c-f) / (a-d);
		y = (c-a*x) / b;
	}
	if(x == -0) x = 0;
	if(y == -0) y = 0;
	cout << fixed << setprecision(3) << x << ' ' << y << endl;
}

int main()
{
	while(true){
		int a, b, c, d, e, f;
		cin >> a >> b >> c >> d >> e >> f;
		if(cin.eof()) break;
		OutputSolution(a, b, c, d, e, f);
	}
	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("%.3f %.3f\n" ,x , y);
	}
	return 0;

}

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

C++: #include <iostream>
#include <stdio.h>
#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) {
        y = (c*d - a*f)/(b*d - a*e);
        x = (c*e - f*b)/(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>
#include <iomanip>


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

C++: #include <iostream>
#include <cstdio>
using namespace std;
int main(){
	float a,b,c,d,e,f,x,y;
	while(cin>>a>>b>>c>>d>>e>>f){
		y = (d*c - a*f)/(d*b - a*e);
		x = (f - e*y)/d;
	printf("%0.3f %0.3f \n",x+0.00000001,y+0.00000001);
	}
}

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){
        
        y=((d/a)*c-f)/((d/a)*b-e);
        x=((e/b)*c-f)/((e/b)*a-d);
        
        cout<<fixed<<setprecision(3)<<x<<" "<<y<<endl;
    }
}

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

int main(){
	
	double a,b,c,d,e,f ;
	double x,y ;
	
	while(1){
		cin >> a ;
		if( cin.eof() ) break ;
		cin >> b >> c ;
		cin >> d >> e >> f ;
		
		if( a*e - b*d == 0 ){
			cout << "error" << endl ;
		}
		else{
			x = ( c*e - b*f ) / ( a*e - b*d ) ;
			y = ( c*e - b*f ) / ( a*e - b*d ) ;
		}
		
		printf("%.3lf %.3lf\n",x ,y) ;
	}
	
return 0 ;
}

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

int main(void)
{
	double a,b,c,d,e,f;
	double ans[2];

	cin >> a >> b >> c >> d >> e >> f;

	ans[1] = (c*d-a*f)/(b*d-a*e);
	ans[0] = (c*d-b*d*ans[1])/(a*d);

	printf("%.3lf %.3lf\n", ans[0]+0.005,ans[1]+0.005);

	return 0;
}