Go: package main

import "fmt"

func main() {

	for {
		var a, b, c, d, e, f float64
		var x, y float64
		i, _ := fmt.Scanf("%f %f %f %f %f %f", &a, &b, &c, &d, &e, &f)
		if i != 6 {
			return
		}

		// x = ((e * c) - (b * f)) / ((a * e) - (b * d))
		y = ((a * f) - (d * c)) / ((a * e) - (b * d))
		x = (c - b*y) / a

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

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

string toStr(int n);
string intToToStr(int n);

int main() {
  int a, b, c, d, e, f;

  while(cin >> a >> b >> c >> d >> e >> f) {
    a = a * 10000;
    b = b * 10000;
    c = c * 10000;
    d = d * 10000;
    e = e * 10000;
    f = f * 10000;
    
    int x, y;
    int det = a * e - b * d;

    x = ( e * c - b * f) / det;
    y = (-d * c + a * f) / det;

    cout << toStr(x) << " " << toStr(y) << endl;
  }
}

string toStr(int n) {
  int ipart = n / 10000;
  int fpart = (n - ipart * 10000) + 5;
  return intToString(ipart) + "." + intToString(fpart).substr(0, 3);
}

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

C++: #include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <iomanip>

using namespace std;

int main() {
	double a, b, c, d, e, f, x, y, det;
	while(cin >> a >> b >> c >> d >> e >> f){
		det = a * e - b * d;
		x = (c * e - b * f)/det;
		y = (-c * d + a * f)/det;
		if(x == 0) x = 0;
		if(y == 0) y = 0;
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}
}

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


/*
//my header
#include "define.h"
#include "geometry.h"*/

#define MyAbs(a) ((a)>0?(a):-(a))
#define MyEqualDoule(a,b) (MyAbs(a-b)<1e-6)

void init()
{
#ifdef _WIN32
	freopen("1.txt", "r", stdin);
#endif
}

void func();

int main()
{
	init();
	func();

	return 0;
}


void func()
{
	int a,b,c,d,e,f;
	float x, y;
	while(~scanf("%d%d%d%d%d%d", &a, &b, &c, &d, &e, &f))
	{
			x = (c*e-f*b)*1.0/(a*e - b*d);
			y = (c*d-a*f)*1.0/(b*d - a*e);
			float x2 = (c-b*y)*1.0/a;
			if(!MyEqualDoule(x-x2, 0))
				while(1);
		printf("%.3f %.3f\n", x, y);
	}
}

C++: #include <cstdio>
#include <cmath>

using namespace std;

static const double EPS=1e-8;

int main() {
    while (true) {
        double a, b, c, d, e, f;
        if (scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) == EOF)
            break;

        double x=(c*e-f*b)/(a*e-b*d);
        double y=(c*d-f*a)/(b*d-a*e);

        if (abs(x) < EPS) x = 0;
        if (abs(y) < EPS) y = 0;

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

    return 0;
}

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

#define MAX 256

int main(void){

	double a, b, c, d, e, f;
	double 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);
		}
		i++;
	}

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

	return 0;
}

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

int rnd(double t){
	if(t>=0.0){
		return (int)(t+0.5);
	}else{
		return (int)(t-0.5);
	}
}
void prnt(double t){
	if(t<0.0){
		cout<<"-";
		t*=-1;
	}
	cout<<(int)t<<"."<<(int)(t*10)-(int)t*10<<(int)(t*100)-(int)(t*10)*10<<(int)(t*1000)-(int)(t*100)*10;
}
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);
		cout<<x<<" "<<y<<endl;
		x=rnd(x*1000.0)/1000.0;
		y=rnd(y*1000.0)/1000.0;
		cout<<x<<" "<<y<<endl;
		prnt(x);
		cout<<" ";
		prnt(y);
		cout<<endl;
	}
	return 0;
}

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

int main(){
	double a, b, c, d, e, f, A, B, C, x, y;
	int xx, yy;

	while(cin >> a >> b >> c >> d >> e >> f){
		A = a * e - b * d;
		B = c * e - b * f;
		C = c * d - a * f;

		x = B / A + 0.0005;
		y = (-1) * C / A + 0.0005;
		xx = x * 1000;
		yy = y * 1000;
		x = xx * 0.001;
		y = yy * 0.001;
		printf("%.3f %.3f?\n", x, y);
	}
	return 0;
}

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

int main()
{
	
	// 係数行列
	double A[2][2];
	
	// 定数ベクトル
	double  B[2];
	
	// 解ベクトル
	double x[2];
	
	
	double a, b, c, d, e, f;
	// 入力の最後まで処理する
	while(cin >> a >> b >> c >> d >> e >> f){
	A[0][0] = a;
	A[0][1] = b;
	A[1][0] = d;
	A[1][1] = e;
	
	B[0] = c;
	B[1] = f;
	
	
	
	int i,j,k;
	double tmp;
	
	// 前進消去
	for(i=0;i<1;i++){
		for(j=i+1;j<2;j++){
			for(k=i+1;k<2;k++){
				A[j][k] = A[j][k] - (A[j][i]/A[i][i])*A[i][k];
			}
			B[j] = B[j] - (A[j][i]/A[i][i])*B[i];
		}
	}
	
	// 後退代入
	for(i=1;i>=0;i--){
		tmp = B[i];
		for(j=i+1;j<2;j++){
			tmp = tmp - A[i][j]*x[j];
		}
		x[i] = tmp/A[i][i];
	}
	
	printf("%.3f %.3f\n", x[0], x[1]);
	
	}
	
	return 0;
}

C++: #include<stdio.h>
int main(){int a,b,c,d,e,f;while(scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f)!=-1){double x,y; y=(a*f-d*c)/(a*e-b*d);x=(c-b*y)/a;printf("%.3f %.3f\n",x+0.0005,y+0.0005);}return 0;}

C++: #include<iostream>
#include<string>
#include<algorithm>
#include<map>
#include<set>
#include<utility>
#include<vector>
#include<cmath>
#include<cstdio>
#define loop(i,a,b) for(int i=a;i<b;i++) 
#define rep(i,a) loop(i,0,a)
#define pb push_back
#define mp make_pair
#define it ::iterator
#define all(in) in.begin(),in.end()
const double PI=acos(-1);
const double ESP=1e-10;
using namespace std;
int main(){
  int a,b,c,d,e,f;
  while(cin>>a>>b>>c>>d>>e>>f){
    double x=(c*e-b*f)/(a*e-b*d);
    double y=(a*f-c*d)/(a*e-b*d);
    printf("%.3f %.3f\n",x,y);
  }
  

}

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

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

int main()
{
	while(true){
		double 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 <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++)

LL gcd(LL a,LL b)
{
	if(b==0)
		return a;
	return gcd(b,a%b);
}

LL lcm(LL a,LL b)
{
	return a*b/gcd(a,b);
}
     
int main()  
{  
#ifdef Online_Judge
	freopen("a.in","r",stdin);
#endif
	int a,b,c,d,e,f;
	while(cin >> a >> b >> c >> d >> e >> f)
	{
		double x=((f*b)-(e*c))/((b*d)-(e*a));
		double y=((f*a)-(d*c))/((a*e)-(d*b));
		//cout << x << ' ' << y << endl;
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}