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<bits/stdc++.h>
#include<cstdio>
#include<sstream>
#include<cstdlib>
#include<cctype>
#include<cmath>
#include<algorithm>
#include<set>
#include<queue>
#include<stack>
#include<list>
#include<iostream>
#include<fstream>
#include<numeric>
#include<string>
#include<vector>
#include<cstring>
#include<map>
#include<iterator>

using namespace std;
#define EPS 1e-9
#define MAX 505
#define pb push_back
#define mp make_pair
#define ins insert
#define fi first
#define se second
#define pi acos(-1.0)
#define mod 100000007
#define inf 2147483647
#define ll long long int
#define sss stringstream
#define oss ostringstream
#define iss istringstream
#define llu long long unsigned

#define _sq(a) (a)*(a)
#define sz(a) ((int)a.size())
#define gcd(a,b)    __gcd(a,b)
#define lcm(a,b) ((a)*((b)/gcd(a,b)))
#define _max3(a,b,c) max(a, max(b,c))
#define _min3(a,b,c) min(a, min(b,c))
#define FOR(i, n) for(i=0; i<(int)n; i++)
#define FOR1(i, n) for(i=1; i<=(int)n; i++)
#define mem(a) memset(a, 0, sizeof(a))
#define _set(a) memset(a,-1,sizeof(a))
#define FORI(i, a, b) for(i=a; i>=(int)b; i--)
#define FORab(i, a, b) for(i=a; i<=(int)b; i++)
#define popcount(n) __builtin_popcount(n)
#define popcountl(n) __builtin_popcountll(n)
#define sort_rev(a) sort(a.rbegin(), a.rend())
#define sort_all(a) sort(a.begin(), a.end())
#define dis_twopoints(x1,y1,x2,y2) sqrt(_sq(x1-x2) + _sq(y1-y2))
#define foreach(i,n) for(__typeof((n).begin())i =(n).begin();i!=(n).end();i++)

//If Long Long (mask & (1LL << k))
#define check(mask, k) (mask & (1 << k))
#define set1(mask, k) (mask | (1 << k))
#define set0(mask ,k) (mask & (~(1<<k)))

#define SD(a) scanf("%d",&a)
#define SLF(a) scanf("%lf",&a)
#define SC(a) scanf("%c",&a)
#define SS(a) scanf("%s",a)
#define SLLD(a) scanf("%lld", &a)
#define Si64(a) scanf("%I64d", &a)

#define READ(f) freopen(f, "r", stdin)
#define WRITE(f) freopen(f, "w", stdout)
int main()
{
    double a,b,c,d,e,f,x,y,fl,clx,cly;
    while((cin>>a>>b>>c>>d>>e>>f))
    {
        fl=(e*a-b*d);
        clx=c*e-b*f;
        if(clx==0)
            x=0.0;
        else
            x=clx/fl;
        cly=f*a-c*d;
        if(cly==0)
            y=0.0;
        else
            y=cly/fl;
        printf("%.3lf %.3lf\n",x,y);
    }
    return 0;
}

C++: #include <stdio.h>

int main( void )
{
    int a,b,c,d,e,f;
    float x,y;
    
    while(scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f)!=-1){    
        y = (float)(( c*d -a*f ) / (b*d-a*e)); 
        x = (float)(( c*e -b*f ) / (a*e-b*d));
        if(-0.0005<x && x <= 0 ) x = 0;
        if(-0.0005<y && y<=0 ) y = 0;
        printf( "%.3lf %.3f\n",x,y); 
    }
    return 0;
}

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

int main(){

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

		cout << x << " " << y << endl;
	}

	return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <string>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <sstream>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <numeric>
#include <cmath>
#include <climits>
#include <limits>
#include <cfloat>
#include <fstream>
using namespace std;

int main()
{
//	cut here before submit 
//	freopen("testcase.se2", "r", stdin);
	string str = "";

	while (getline (cin, str )){
		int a, b, c, d, e, f;
		stringstream ss(str);
		ss >> a >> b >> c >> d >> e >> f;
		double x,y;
		double D = (double)(a*e - b*d);

		x = (double)(e*c - b*f)/D;
		y = (double)(-d*c + a*f)/D;
		if (fabs(x) < 1.0e-3){
			x = 0.0;
		} // end if
		if (fabs(y) < 1.0e-3){
			y = 0.0;
		} // end if
		cout.setf( ios::fixed ); 
		cout.precision(3);
		cout << x << ' ' << y << endl;
	} // end for

	return 0;
}

C++: #include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
using namespace std;
static const double EPS = 1e-5;
typedef long long ll;
#define FOR(i,n) for(i=0;i<n;i++)
#define rep(i,n) for(int i=0;i<n;i++)

int main(){
	double a,b,c,d,e,f,r1,r2;
	for(;scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f)!=EOF;){
		r1=(c*e-f*b)/(a*e-d*b);
		r2=(c*d-f*a)/(b*d-e*a);
		-0.001<r1&&r1<0.001&&(r1=0);
		-0.001<r2&&r2<0.001&&(r2=0);
		printf("%.3f %.3f\n",r1,r2);
	}
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
#include <math.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 = 0.0;
        y = 0.0;
        
        x = (c*e-f*a)/(a*e-b*d);
        
        y = (c*d-f*a)/(b*d-a*e);
        
        
        if (x == 0) {
            x = 0;
        }
        else if (y == 0) {
            y = 0;
        }
        
        printf("%.3f %.3f\n", x, y);
        
        
	}
    
    
	return 0;
}

C++: #include<stdio.h>
struct EQ{
  float x;
  float y;
  float a;
};

float fy(struct EQ,struct EQ);
float fx(struct EQ,struct EQ);


int main(void){

  struct EQ eq1,eq2;
  float x,y;
 while(scanf("%f %f %f %f %f %f",&eq1.x,&eq1.y,&eq1.a,&eq2.x,&eq2.y,&eq2.a)!=EOF){
 
   y=fy(eq1,eq2);
   x=fx(eq1,eq2);
 printf("%0.3f %0.3f\n",x,y); 
 }
  return 0;
  }

float fy(struct EQ eq1,struct EQ eq2){

  float y,a,x;

  if(eq1.x==0 && eq1.a!=0){ 

    if(eq1.y<0){
      eq1.y=-eq1.y;
      eq1.a=-eq1.a;
    }
    y=eq1.a/eq1.y;
  }
 
  else if(eq2.x==0 && eq2.a!=0){ 

    if(eq2.y<0){
      eq2.y=-eq2.y;
      eq2.a=-eq2.a;
    }
    y=eq2.a/eq2.y;
  }
  else if(eq1.x==0 && eq1.a==0){  
    y=0;
  }
  else if(eq2.x==0 && eq2.a==0){
    y=0;
  }

  else{

  eq1.y=eq1.y/eq1.x;
  eq1.a=eq1.a/eq1.x;
 
  eq2.y=eq2.y/eq2.x;
  eq2.a=eq2.a/eq2.x;

   y=eq1.y-eq2.y;
  a=eq1.a-eq2.a;
  if(y<0){
    y=-y;
    a=-a;
  }

   y=a/y;

  if(y==-0){
    y=0;
  }


  }
  return y;

  }

float fx(struct EQ eq1,struct EQ eq2){

  float x,a;

  if(eq1.y==0 && eq1.a!=0){ 
    
    if(eq1.x<0){
      eq1.x=-eq1.x;
      eq1.a=-eq1.a;
    }
    x=eq1.a/eq1.x;
  }
  
  else if(eq2.y==0 && eq2.a!=0){ 
    
    if(eq2.x<0){
      eq2.x=-eq2.x;
      eq2.a=-eq2.a;
    }
    x=eq2.a/eq2.x;
  }
  else if(eq1.y==0 && eq1.a==0){  
    x=0;
  }
  else if(eq2.y==0 && eq2.a==0){
    x=0;
  }

  else{

  eq1.x=eq1.x/eq1.y;
  eq1.a=eq1.a/eq1.y;

  eq2.x=eq2.x/eq2.y;
  eq2.a=eq2.a/eq2.y;

  x=eq1.x-eq2.x;
  a=eq1.a-eq2.a;

  if(x<0){
    x=-x;
    a=-a;
  }
 
  x=a/x;

  if(x==-0){
    x=0;
  }

  }

  return x;

  }

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

int main()
{
	double a,b,c,d,e,f;
	double x,y;
	int count = 0;
	vector<double> result_x,result_y;

	while(cin >> a >> b >> c >> d >> e >> f) {
		y = (a * f - c * d) / (a * e - b * d);
		if(a==0)
			x = (c - b * y) / a;
		else
			x = (f - e*y) / d;
		result_y.push_back(y);
		result_x.push_back(x);
		cout << result_x[count] << ' ' << result_y[count] << endl;
		count++;
	}

	return 0;
}