Go: package main

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

func gcd(num1, num2 int) int {
	if num2 == 0 {
		return num1
	}
	num3 := num1 % num2
	return gcd(num2, num3)
}

func lcm(num1, num2 int) int {
	if num1%num2 != 0 {
		num3 := gcd(num1, num2)
		for i := 1; ; i++ {
			check := num3 * i
			if check%num1 == 0 && check%num2 == 0 {
				return check
			}
		}
	} else {
		return num1
	}
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		strNums := strings.Fields(scanner.Text())
		nums := []int{}
		for _, strNum := range strNums {
			num, _ := strconv.Atoi(strNum)
			nums = append(nums, num)
		}
		a := nums[0]
		b := nums[1]
		c := nums[2]
		d := nums[3]
		e := nums[4]
		f := nums[5]
		lcm := lcm(a, d)
		mulA := lcm / a
		mulD := lcm / d
		a *= mulA
		b *= mulA
		c *= mulA
		d *= mulD
		e *= mulD
		f *= mulD

		if d < 0 {
			d *= -1
			e *= -1
			f *= -1
		}

		bE := b - e
		cF := c - f
		y := cF / bE
		x := (c - (y * b)) / a

		fmt.Printf("%d.000 ", x)
		fmt.Printf("%d.000\n", y)
	}
}

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

using namespace std;
int main(){
    float a,b,c,d,e,f;
    while((cin>>a>>b>>c>>d>>e>>f)){
        printf("%.3f %.3f",(c*e-b*f)/(a*e-b*d),(c*d-a*f)/(b*d-a*e));
    }
    return 0;
}

C++: #include<stdio.h>
#include<iostream>
#include<cmath>
#define EPS 0.0000001
 
using namespace std;
 
main(){
  int a, b, c, d, e, f;
  double x, y;
  while ( cin >> a >> b >> c >> d >> e >> f ){
    x = 1.0 * ( c*e - b*f ) / ( a*e - b*d ) + EPS;
    y = 1.0 * ( c*d - a*f ) / ( b*d - a*e ) + EPS;
    printf("%.3lf %.3lf\n", x, y);
  }
}

C++: #include <iostream>
 
using namespace std;
 
int main(int argc, char **argv)
{
    double a, b, c, d, e, f, tmp, s, t;
     
    while((cin >> a >> b >> c >> d >> e >> f)){
        tmp = (a*e-b*d);
        s = ((e*c-b*f)/tmp);
        t = ((a*f-d*c)/tmp);
         
        if(s == -0.0){
            s = 0.0;
        }
        if(t == -0.0){
            t = 0.0;
        }
        printf("%.3f %.3f\n", s, t);
    }
     
    return 0;
}

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

using namespace std;

int main()
{
	double a, b, c, d, e, f;
	double x, y;
	double odd;

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

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

		cout << fixed << setprecision(3);
		cout << x << " " << y << endl;

	}


	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long LL;
#define REP(i,N) for(int i = 0; i < (int)N; i++)

double det(double a1,double a2,double a3,double a4){
	return a1*a4-a2*a3;
}

int main(){
	double a,b,c,d,e,f;
	while(cin >> a >> b >> c >> d >> e >> f){
		double g,h,i;
		g = det(a,b,d,e);
		h = det(c,b,f,e);
		i = det(a,c,d,f);
		double j,k;
		j = h/g;
		k = i/g;
		j = round(j*pow(10,3))/pow(10,4);
		k = round(k*pow(10,3))/pow(10,4);
		printf("%.3f %.3f",j,k);
	}
	return 0;
}

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;
    if(abs(b)<1e-9){
      x = c/a;
      y = (f-d*x)/e;
    }else{
      x = (b*f-c*e)/(b*d-a*e);
      y = (f-d*x)/e;
    }
    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;
	while (cin >> a >> b >> c >> d >> e >> f) {
		// ???????????????(???????????????????????????????????????)
		// ?¬¬?????????x????????°???1?????????
		b /= a;
		c /= a;
		a = 1;
		// ????????¶?????§???????¨???? (e-bd)y = f-cd ?????????????????????
		double y = (f - c*d) / (e - b*d);
		double x = c - b * y;
		printf ("%1.3f %1.3f",x,y);
		cout << endl;
	}
	return 0;
}

C++: #include <stdio.h>

int main(void){
	double a,b,c,d,e,f;
	double ans_x,ans_y;
	while(scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f) != EOF){
		ans_y = (c*d-a*f) / (b*d-a*e);
		ans_x = (c - (b*ans_y)) / a;

		printf("%.3lf %.3lf\n",ans_x,ans_y);
	}

	return 0;
}

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

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

int main(){
	
	double a, b, c, d, e, f, x=0, y=0; // ???????°???°?????°??? %f
	while(cin >> a >> b >> c >> d >> e >> f){
		x = (b*f-c*e)/(b*d-a*e);
		y = (a*f-c*d)/(a*e-b*d);

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

C++: #include<iostream>
#include<iomanip>
#include<stdio.h>

using namespace std;

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

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

		double tempb = b;

		a*=e;b*=e;c*=e;
		d*=tempb;e*=tempb;f*=tempb;
		a-=d;b-=e;c-=f;

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

		if(x == -0)
			x = 0;
		if(y == -0)
			y = 0;
		printf("%0.4lf %0.4lf\n",x,y);
	}

	return 0;
}

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

using namespace std;

int main (int argc, char const* argv[])
{
    double a,b,c,d,e,f;
    double x,y;
    
    while(cin >> a >> b >> c >> d >> e >> f){
        if(a && b && d && e){
            x = (c*e - b*f) / (a*e - b*d);
            y = (c - a*((c*e - b*f) / (a*e - b*d)))/b;
        }

        if(!a){
            y = c/b;
            x = !e ? x = f/d : (f - e*(c/b))/d;
        }

        if(!b){
            x = c/a;
            y = !d ? f/e : (f - d*(c/a))/e;
        }

        if(!d){
            y = f/e;
            x = !b ? c/a : (c - e*(f/e))/a;
        }

        if(!e){
            x = f/x;
            y = !a ? c/b : (c - a*(f/x))/b;
        }

        x = round(x * 1000)/1000.0;
        y = round(y * 1000)/1000.0;
        
        if(x == 0) x = 0;
        if(y == 0) y = 0;
        
        printf("%.03lf %.03lf\n",x,y);
    }
    
    return 0;
}

C++: #include<iostream>
#include<cmath>
#include<cstdio>
using namespace std;
int main(){
  double a,b,c,d,e,f;

 
  while( cin>>a>>b>>c>>d>>e>>f){
  
    double x,y;
  
    y=(c*d-a*f)/(b*d-a*e);
    x=(c-b*y)/a;
  
    //cout<<x<<' '<<y<<endl;
    printf("%.4lf %.4lf\n",x,y);
  }
}

C++: #include <cstdio>

using namespace std;

int GCD(int x, int y)
{
    if (y == 0) return x;
    
    return GCD(y, x % y);
}

int LCM(int x, int y)
{
    return x / GCD(x, y) * y;
}

int main() {
	int a, b, c, d, e, f;
	int _a, _b, _c, _d, _e, _f;
	double x, y;
	int _x, _y, _z;
	int multiTop, multiBottom;
	int common;
	
	while (scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF) {
	    common = LCM(a, d);
	    multiTop = common / a;
	    multiBottom = common / d;
	    
	    _a = common;
	    _b = b * multiTop;
	    _c = c * multiTop;
	    
	    _d = common;
	    _e = e * -multiBottom;
	    _f = f * -multiBottom;
	    
	    _y = _b + _e;
	    _z = _c + _f;
	    
	    y = (double)_z / (double)_y;
	    
	    _c = c - (b * y);
	    
	    x = (double)_c / (double)a;
	    
	    printf("%.3f %.3f\n", x, y);
	}
	
	return 0;
}

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