Go: package main

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

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	var strs []string
	var a, b, c, d, e, f float64
	var x, y float64
	for scanner.Scan() {
		strs = strings.Split(scanner.Text(), " ")
		_a, _ := strconv.Atoi(strs[0])
		_b, _ := strconv.Atoi(strs[1])
		_c, _ := strconv.Atoi(strs[2])
		_d, _ := strconv.Atoi(strs[3])
		_e, _ := strconv.Atoi(strs[4])
		_f, _ := strconv.Atoi(strs[5])
		a = float64(_a)
		b = float64(_b)
		c = float64(_c)
		d = float64(_d)
		e = float64(_e)
		f = float64(_f)
		y = (c*d - f*a) / (d*b - a*e)
		x = (c - b*y) / a

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

C++: # include <algorithm>
# include <cassert>
# include <cctype>
# include <cstdio>
# include <cstdlib>
# include <cstring>
# include <cmath>
# include <iostream>
# include <map>
# include <queue>
# include <set>
# include <sstream>
# include <stack>
# include <string>
# include <vector>
# include <iomanip>

# define rep(i, n) for (int i = 0; i < (int)(n); i++)
# define irep(i, n) for (int i = int(n) - 1; i >= 0; i--)
# define FOR(i, m, n) for (int i = int(m); i < (int)(n); i++)

using namespace std;
typedef long long ll;


// %% begin matrix %%

typedef vector<double> vec;
typedef vector<vec> mat;

void pretty_print(mat g) {
  rep (i, g.size()) {
    rep (j, g[0].size()-1) {
      cout << g[i][j] << ' ';
    }
    cout << g[i][g[0].size()-1] << endl;
  }
}


mat mul(mat A, mat B) {
  mat C(A.size(), vec(B.size()));
  rep (i, A.size()) {
    rep (k, B.size()) {
      rep (j, B[0].size()) {
        C[i][j] += A[i][k] * B[k][j];
      }
    }
  }
  return C;
}

// %% end matrix %%


vec jordan(mat &A, vec &b) {
  int n = A.size();

  // ?????§?????°??????
  mat B(n, vec(n+1));
  rep (i, n) {
    rep (j, n) {
      B[i][j] = A[i][j];
    }
    B[i][n] = b[i];
  }


  rep (i, n) {
    int pivot = i;

    // ?????????
    for (int j = i; j < n; j++) {
      if (abs(B[j][i]) > abs(B[pivot][i])) {
        pivot = j;
      }
    }
    swap(B[i], B[pivot]);

    if (abs(B[i][i]) < 0.0000001) {
      return vec();
    }

    for (int j = i+1; j <= n; j++) B[i][j] /= B[i][i];
    rep (j, n) {
      if (i != j) {
        for (int k = i+1; k <= n; k++) {
          B[j][k] -= B[j][i] * B[i][k];
        }
      }
    }
  }

  vec x(n);
  rep (i, n) {
    x[i] = B[i][n];
  }

  return x;
}




int main() {

  rep (iter, 2) {

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

    mat A = {
      {a, b},
      {d, e}
    };

    vec B = {
      c, f
    };

    vec x = jordan(A, B);
    cout << x[0] << " " << x[1] << endl;
  } 
}

C++: #include<stdio.h>
int main(void){
	double a,b,c,d,e,f;
	double x,y;
	while(scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f)!=EOF){
		y=(a*f-d*c)/(a*e-d*b);
		x=(b*f-e*c)/(b*d-a*e);
	/*	if(y%0.01>0.004){
			y+=0.001;
		}
		if( x/0.01>0.004){
			x+=0.001;
		}*/
		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 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 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++)

const int maxn = 5;

int seq[maxn];
     
int main()  
{  
#ifdef Online_Judge
	freopen("a.in","r",stdin);
#endif
	int a,b,c,d,e,f;
	while(scanf("%d%d%d%d%d%d",&a,&b,&c,&d,&e,&f)==6)
	{
		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);
	}
	return 0;
}

C++: #include<stdio.h>


float round(float x){
	if(x >= 0){
		x = (int)(x*1000.0 + 0.5);
		x = x/1000.0;
	}else if(x < 0){
		x = (int)(x*1000.0 - 0.5);
		x = x/1000.0;
	}
	return x;
}


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

	while(scanf("%f %f %f %f %f %f", &a, &b, &c, &d, &e, &f) != EOF){
		float r = b*d - a*e;
		float x = (b*f - c*e)/r;
		float y = (c*d - a*f)/r;
		//printf("%f %f\n", x, y);
		printf("%0.3f %0.3f\n", round(x), round(y));
	}

	return 0;
}

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

int main(void){
	double a,b,c,d,e,f;
	double x,y;
	cout << fixed;
	cout.precision(3);
	while(cin >> a >>b >> c >> d >> e >>f){
		x=(c*e-b*f)/(a*e-b*d);
		y=(c*d-a*f)/(b*d-a*e);
		if(x==0) x=0.0;
		if(y==0) y=0;
		cout << x << " " << y << endl;
	}
	return 0;
}

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

int main(){
  float a,b,c,d,e,f,y,x;
  while(cin >> a>>b>>c>>d>>e>>f){
    if(d != 0){
      y = (d*c-a*f)/(d*b-a*e);
      x = (f - e * y)/d;
    }
    if(x == -0){
      x = 0.0000;
    }
    if(y == -0){
      y = 0.0000;
    }
    printf("%.3f %.3f\n",x,y);
  }

}

C++: #include<iostream>

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

C++: #include <iostream>
#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= (double)(1.0/(a*e-b*d))*(e*c-b*f);
		y= (double)(1.0/(a*e-b*d))*(-d*c+a*f);
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

C++: #include <stdio.h>
#include <stdlib.h>
#include <math.h>
//
//double cut(double d){
//    d = floor(d * 1000);
//    d = d / 1000;
//    return d;
//}

int main(int argc, const char * argv[]){
    int a,b,c,d,e,f;
    double x,y;
    
    while(scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f) != EOF){
        if((-1000 > a || a > 1000) ||
           (-1000 > b || b > 1000) ||
           (-1000 > c || c > 1000) ||
           (-1000 > d || d > 1000) ||
           (-1000 > e || e > 1000) ||
           (-1000 > f || f > 1000)){
            exit(0);
        }
        x = (c * e - b * f)/(a * e - b * d);
        y = (c * d - a * f)/(b * d - a * e);
    
        printf("%.3f %.3f\n",x,y);
    }
    return 0;
}

C++: #include <stdio.h>
double round3(double a){
	a=a*10000;
	if(int(a)%10>5){
		a=a+10-int(a)%10;
	}else{
		a=a-int(a)%10;
	}
	
	a=double (int (a/10));
	a=a/1000;

	return a;

}
int main(){
	int a,b,c,d,e,f;
	double x,y;
	while((scanf("%d%d%d%d%d%d",&a,&b,&c,&d,&e,&f))!=EOF){
		if(a==0){
			y=c/b;
			x=(f-e*y)/d;
		}else if(b==0){
			x=c/a;
			y=(f-d*x)/e;
		}else if(d==0){
			y=f/e;
			x=(c-b*y)/a;
		}else if(e==0){
			x=f/d;
			y=(c-a*x)/b;
		}else{
			y=(c*d-a*f)/(b*d-a*e);
			x=(c-b*y)/a;
		}
		
		x=round3(x);
		y=round3(y);
		
		printf("%0.3lf %0.3lf\n",x,y);
	}
	return 0;
}

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

int main(){

	double a, b, c, d, e, f, x, y, del;
	
	while(cin >> a){
	
		cin >> b >> c >> d >> e >> f;
		
		del = a * e - b * d;
		x = (c * e - b * f) / del;
		y = (a * f - c * d) / del;
		cout << fixed;
	  cout.precision(3);
	  cout << x << " " << y << endl;
	}

	return 0;
}