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++: #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;
		if (x == -0) x = 0; if (y == -0) y = 0;
		printf("%.3f %.3f\n", x, y);
	}
}

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

int main()
{
	double x[2],y[2],z[2];
	double X,Y;

	while(cin >> x[0] >> y[0] >> z[0] >> x[1] >> y[1] >> z[1]){
		y[0] *= x[1];	z[0] *= x[1];
		y[1] *= x[0];	z[1] *= x[0];

	
		Y = (z[0]-z[1]) / (y[0]-y[1]);

		y[0] /= x[1];
		z[0] /= x[1];
		z[0] -= y[0] * Y;

		X = z[0]/x[0];

		cout << X << " "<< Y << endl;

	}
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;
int main(){
	int a,b,c,d,e,f;
	while(cin >> a >> b >> c >> d >> e >> f){
		double x,y;
		x = ( c * e - b * f )/(a * e - b * d);
		y = ( a * f - c * d )/(a * e - b * d);
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}

C++: #include <functional>
#include <algorithm>
#include <iostream>
#include <sstream>
#include <cstring>
#include <iomanip>
#include <fstream>
#include <climits>
#include <cctype>
#include <cstdio>
#include <string>
#include <vector>
#include <bitset>
#include <queue>
#include <stack>
#include <cmath>
#include <ctime>
#include <deque>
#include <list>
#include <map>
#include <set>
using namespace std;

/*** typedef ***/
typedef long long LL;
typedef unsigned int ui;
typedef unsigned long long ULL;
typedef pair < int , int > ii;
typedef pair < LL  , LL  > ll;
typedef vector <int>  vint;
typedef vector <bool> vbool;
typedef vector <long> vlong;

/*** define ***/
#define sz(x)			((int)x.size())
#define tin(x)			scanf("%d",&x)
#define all(x)			x.begin(),x.end()
#define Set(b,a)		memset(b,a,sizeof b)
#define print1(x)		printf("Case %d:",x++)
#define tin2(x,y)		scanf("%d%d",&x,&y)
#define tin3(x,y,z)		scanf("%d%d%d",&x,&y,&z)
#define loop(i,i0,in)	for(int i=i0 ; i<in ; i++)
#define rep(i,n)		for(int i=0 ; i<(n) ; i++)
#define _rep(i,n)		for(int i=n-1 ; i>=0 ; i--)
#define _loop(i,in,i0)	for(int i=in-1 ; i>=i0 ; i--)
#define Fore(it, x)		for(typeof (x.begin()) it = x.begin(); it != x.end (); it++)
     
int main()  
{  
#ifdef Online_Judge
	freopen("a.in","r",stdin);
#endif
	long long a,b,c,d,e,f;
	while(cin >> a >> b >> c >> d >> e >> f)
	{
		LL x=((c*e) - (b*f))/((a*e)-(b*d));
		LL y=((a*f) - (c*d))/((a*e)-(b*d));
		printf("%I64d.000 %I64d.000\n",x,y);
	}
	return 0;
}

C++: #include <iostream>
using namespace std;
int main() {
	int i;
	double a[2], b[2], c[2], x, y;
	cin >> a[0] >> b[0] >> c[0] >> a[1] >> b[1] >> c[1];
	if (a[0] == 0) {
		y = c[0] / b[0];
		x = (c[1] - b[1] * y) / a[1];
	}
	else if (b[0] == 0) {
		x = c[0] / a[0];
		y = (c[1] - a[1] * x) / b[1];
	}
	else if (a[1] == 0) {
		y = c[1] / b[1];
		x = (c[0] - b[0] * y) / a[0];
	}
	else if (b[1] == 0) {
		x = c[1] / a[1];
		y = (c[0] - a[0] * x) / b[0];
	}
	else {
		x = (c[1] - c[0] * b[1] / b[0]) / (a[1] - a[0] * b[1] / b[0]);
		y = (c[0] - a[0] * x) / b[0];
	}
	x = x * pow(10,3);
	x = round(x);
	x = x * pow(10, -3);
	y = y * pow(10, 3);
	y = round(y);
	y = y * pow(10, -3);
	cout << x << endl << y << endl;
	return 0;
}

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

const double ep = 1e-10;

int main() {
    int a, b, c, d, e, f, A, B, C;
    double x, y;
    while(cin >> a >> b >> c >> d >> e >> f) {
        A = c*e - b*f;
        B = a*f - c*d;
        C = a*e - b*d;
        x = (double)A/C; y = (double)B/C;
        if(x>-ep && x<ep) x = 0.0;
        if(y>-ep && y<ep) y = 0.0;
        printf("%.3f %.3f\n", x, y);
    }
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)

int main()
{
    while(1)
    {
    double a,b,c,d,e,f;
    cin >> a;
    if(cin.eof())break;
    cin >> b;
    cin >> c;
    cin >> d;
    cin >> e;
    cin >> f;
    double det = a*e-b*d;
    double ans1 = (c*e-b*f)/det;
    if(ans1<0.0)ans1 = -ans1;
    double ans2 = (-c*d+a*f)/det;
    if(ans2<0.0)ans2 = -ans2;
    printf("%1.3f %1.3f\n",ans1,ans2);
    }
    return 0;
}

C++: #include <iostream>
#include <cmath>
#include <cstdio>
#include <algorithm>
#include <vector>
#include <sstream>
#include <string>
#include <cstdlib>
using namespace std;

// 一行取って、一番初めのTを習得
template <class T> int streamvar(std::istream& in, T& var)
{
    string s;
    if (!in) {
        return 1;
    }
    getline(in, s);
    istringstream is(s);
    is >> var;
    if (is.fail()) 
        return 1;
    return 0;
}
// 一行取って、T vectorに格納する
template <class T> int streamvec(std::istream& in, std::vector<T> &v)
{
    v.clear();
    string s;

    if (!in) 
        return 1;
    getline(in, s);
    if (in.fail()) 
        return 1;
    istringstream is(s);
    while (1) {
        T tmp;
        is >> tmp;
        if (is.fail())
            break;
        v.push_back(tmp);
    }
    return 0;
}

int main(void)
{
    vector<int> v;
    while (!streamvec(cin, v)) {
        double det = v[0] * v[4] - v[3] * v[1];
        double x = v[4] * v[2] - v[1] * v[5];
        double y = -v[3] * v[2] + v[0] * v[5];
        printf("%.3f %.3f\n", round(x/det*1000)/1000, round(y/det*1000)/1000);
    }
    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 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 <bits/stdc++.h>
using namespace std;

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

C++: #include <iostream>
#include <iomanip>

int main(void) {
	using namespace std;
	int a, b, c, d, e, f, x, y;
	while (std::cin >> a >> b >> c >> d >> e >> f) {
		x = (double)(f*b - e*c) / (d*b - e*a);
		y = (double)(f*a - d*c) / (e*a - d*b);
		cout << fixed << setprecision(3)<< x << ' ' << y << endl;
	}

	return 0;
}

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

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

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

int main()
{
    int a,b,c,d,e,f;
    double x,y;
    for(int i=0;i<2;i++){
        cin>>a>>b>>c>>d>>e>>f;
        double l,m,n;
        l=a/d;
        m=b-e*l;
        n=c-f*l;
        y=n/m;
        x=(c-b*y)/a;
        printf("%.3f %.3f\n",x,y);
    }
    return 0;
}

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-d*b);
        y=(f*a-c*d)/(e*a-b*d);
        if(x==0) x=0.0;
        if(y==0) y=0.0;
        printf("%.3f %.3f\n",x,y);
    }
}