Go: package main

import (
        "fmt"
        "bufio"
        "os"
        "math"
)

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
                if x == 0.0 {
                        x = math.Abs(x)
                }
                if y == 0.0 {
                        y = math.Abs(y)
                }
                fmt.Printf("%.3f %.3f\n", x, y)
        }
}

C++: //include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <complex>
#include <math.h>
using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<long, long> PLL;
typedef long long LL;
//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(long i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

const long double EPS = 1e-12;
const double INF = 1e12;

long double to_deg(long double r) {
    return r * 180.0 / (atan(1.0) * 4.0);
}
int main(){
	double a,b,c,d,e,f;
	while(cin>>a>>b>>c>>d>>e>>f){
		double x=(e*c-b*f)/(a*e-b*d);
		double y=(a*f-c*d)/(a*e-b*d);
		if(abs(x)<EPS)x=0;
		if(abs(y)<EPS)y=0;
		cout<<fixed<<setprecision(3)<<x<<" "<<y<<endl;
	}
	return 0;
}

C++: #include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <ctime>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;

#define all(c) (c).begin(), (c).end()
#define pb push_back
#define mp make_pair
#define EXIST(v,i) (find(all(v), i) != (v).end())
#define ERASE(v,i) (v).erase(remove(all(v), i), (v).end())
#define INDEX(v,i) (find(all(v), i) - (v).begin())
#define rep(i,n) for(int i = 0; i < (int)n; ++i)
#define debug(x) cerr << #x << " = " << (x) << endl;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

const int INF = 100000000;
const double PI = 3.14159265358979323846;
const double EPS = 1e-10;

int main() {
	double a, b, c, d, e, f;
	while(~scanf(" %lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f)) {
		printf("%.3f %.3f\n", (e * c - b * f) / (a * e - b * d) + 0.0, (a * f - c * d) / (a * e - b * d) + 0.0);
	}
	return 0;
}

C++: #include <cstdio>

using namespace std;

int main()
{
  long long a, b, c, d, e, f;
  while(scanf("%lld%lld%lld%lld%lld%lld", &a, &b, &c, &d, &e, &f) != EOF){
    long long g = e * a;
    long long h = f * a;
    long long i = b * d;
    long long j = c * d;
    long long k = i - g;
    long long l = j - h;
    double y = (double)l / (double)k;
    double x = (double)(c - b*y) / (double)a;

    printf("%lf %lf\n", x, y);
  }
  return 0;
}

C++: #include <iostream>
#include <cstdio>
using namespace std;
double Round(double x);

int main(void){
    

    
    while(1){

        //??\?????????
        int a = 0;
        int b = 0;
        int c = 0;
        int d = 0;
        int e = 0;
        int f = 0;
        
        int ret = scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f);
        
        if(ret == EOF){
            break;
        }
        //?¨????
        double x = ( ( ( d * c ) - ( a * f ) ) / ( ( b * d ) - ( a * e ) ) );
        double y = ( ( ( b * d ) - ( a * c ) ) / ( ( d * c ) - ( a * f ) ) );    
        
        //?????¨?????\
        x = Round( x );
        y = Round( y );
        
        //??????
        printf("%.4f %.4f",x,y);
        
    }
    return(0);
}

double Round(double ReciveNum){
    
    double Section = (( ReciveNum * 1000 ) - (( int )( ReciveNum * 1000 )));
    
    if( Section < 0.0005){
        /* Do nothing */
    }else{
        ReciveNum += 0.001;
    }
    
    return ( ReciveNum );
}

C++: #include <iostream>

using namespace std;

int main()
{
	int a,b,c,d,e,f;
	float x,y,dx,dy;
	while( cin >> a >> b >>c >>d >> e >> f ) {
		x = (c*e-b*f)/(float)(a*e-b*d);
		y = (float)c/b - (float)a /b * x;
		
		dx =x -  (x / 0.001)*0.001;
		if( dx >= 0.0005)
			x = (x / 0.001)*0.001 + 0.001;
		else
			x = (x / 0.001)*0.001;

		dy =y -  (y / 0.001)*0.001;
		if( dy >= 0.0005)
			y = (y / 0.001)*0.001 + 0.001;
		else
			y = (y / 0.001)*0.001;
	
		printf("%.3f %.3f\n",x,y);
	}



	return 0;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main() {
int a,b,c,d,e,f;
while (cin>>a>>b>>c>>d>>e>>f) {
 double dx = c*e-b*f;
 double dy = a*f-c*d;
 double d  = a*e-b*d;
 cout << setprecision(4) << dx/d << ' ' << dy/d << endl;
 }
return 0;
}

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

using namespace std;

int main(){

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

while(cin >> a >> b >> c >> d >> e >> f){

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

cout << setprecision(4) << x << " " << y;
}
}

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

using namespace std;

int main(){
  cout<<fixed<<setprecision(3);
  int a, b, c, d, e, f;

  while(cin>>a){
    cin>>b>>c>>d>>e>>f;

    double x = ((double)c*e- b*f)/(a*e-b*d) + 1e-10;
    double y = (c-a*x)/b;
    cout<<x<<" "<<y<<endl;
  }
}

C++: #include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef complex<double> P;
typedef pair<int,int> pii;
#define REP(i,n) for(ll i=0;i<n;++i)
#define REPR(i,n) for(ll i=1;i<n;++i)
#define FOR(i,a,b) for(ll i=a;i<b;++i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define MOD (ll)(1e9+7)
#define ADD(a,b) a=((a)+(b))%MOD
#define FIX(a) ((a)%MOD+MOD)%MOD

int main(){
  double a,b,c,d,e,f;
  while(~scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f)){
    // ax+by=c
    // dx+ey=f
    double x,y;
    x = (b*f-c*e)/(b*d-a*e);
    y = (f-d*x)/e;
    if(abs(x)<1e-9) x = abs(x);
    // x = round(x*1000.0)/1000.0;
    // y = round(y*1000.0)/1000.0;
    printf("%.3lf %.3lf\n",x,y);
  }
  return 0;
}