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>
#include<cstring>

using namespace std;

int main(){
   double a,b,c,d,e,f;
   double x,y;
   int 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);
      
      X = static_cast<int>(x*10000);
      if(X%10>=5){
         X += 10 - (X%10);
         x = static_cast<double>(X /10000);
      }
      Y = static_cast<int>(y*10000);
      if(Y%10>=5){
         Y += 10 - (Y%10);
         y = static_cast<double>(Y /10000);
      }
      if(0 == static_cast<int>(x))
         x = 0;
      if(0 == static_cast<int>(y))
         y = 0;
      
      printf("%.3lf %.3lf\n",x,y);
      
   }
   return 0;
}

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


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 = (-c*d+a*f)/(a*e-b*d);
                if(x==0) x=0;
                if(y==0) y=0;
                printf("%.3f %.3f\n",x,y);
	}

}

C++: #include<stdio.h>

int main(){
	double x1,y1,z1,x2,y2,z2,num1=0,x=0,y=0,z=0,sum1=0,sum2=0,vx=0,vy=0,vz=0;
	
	while(1){
	
	scanf("%lf %lf %lf %lf %lf %lf",&x1,&y1,&z1,&x2,&y2,&z2);
	
	
	
	
	if((x1>0&&x2>0)||(x1<0&&x2>0)){
		num1=x2/x1*-1;
	}
	else if((x1>0&&x2<0)||(x1<0&&x2<0)){
		num1=x2/x1;
	}
	
	
	
	vx=x1*num1;
	vy=y1*num1;
	vz=z1*num1;
	
	x=vx+x2;
	y=vy+y2;
	z=vz+z2;
		
	sum2=z/y;
	sum1=(z2-y2*sum2)/x2;
	
	
	
	
	if(sum1>=0){
	sum1=(int)(sum1*1000+0.5);
	sum1=(double)(sum1/1000);
	}
		else if(sum1<0){
	sum1=(int)(sum1*1000-0.5);
	sum1=(double)(sum1/1000);
	}
	if(sum2>=0){
	sum2=(int)(sum2*1000+0.5);
	sum2=(double)(sum2/1000);
	}
		else if(sum2<0){
	sum2=(int)(sum2*1000-0.5);
	sum2=(double)(sum2/1000);
	}
	
	
	
	printf("%.3f %.3f\n",sum1,sum2);
	
	}
		
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;
int main() {
	long double a, b, c, d, e, f, x, y;
	while (cin >> a >> b >> c >> d >> e >> f) {
		x = (long double)(b*f - e * c) / (d*b - a * e);
		y = (long double)(a*f - d * c) / (a*e - d * b);
		if (x < 0)
			x = (long double)((int)(x * 1000 - 0.5)) / 1000;
		else
			x = (long double)((int)(x * 1000 + 0.5)) / 1000;
		if (y < 0)
			y = (long double)((int)(y * 1000 - 0.5)) / 1000;
		else
			y = (long double)((int)(y * 1000 + 0.5)) / 1000;
		printf("%.3llf %.3llf\n", x, y);
	}
	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) != EOF){
    double ans1 = (double)(e*c-b*f)/(double)(a*e-b*d);
    double ans2 = (double)(-d*c+a*f)/(double)(a*e-b*d); 
    printf("%.3lf %.3lf\n", ans1, ans2);
  }
  return 0;
}

C++: 
#include <iostream>
 
using namespace std;
 
int main()
{
    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 <cstdio>
using namespace std;

#define EPS 1.0e-6

int main(){
	int a, b, c, d, e, f;
	while(cin>>a>>b>>c>>d>>e>>f){
		double x = 1.0*(e*c-b*f)/(e*a-b*d);
		double y = 1.0*(d*c-a*f)/(d*b-a*e);
		x += EPS;
		y += EPS;
		printf("%.3f %.3f", x, y);
		cout<<endl;
	}
	return 0;
}

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

using namespace std;

int main(){
        double a, b, c, d, e, f, g, h, i, j, k, l, m, n, x, y;

        while(scanf("%lf%lf%lf%lf%lf%lf", &a, &b, &c, &d, &e, &f) != EOF){
                g = a * d;      //公倍数
                j = b;
                k = c;
                l = a;
                b *= g / a;
                c *= g / a;
                e *= g / d;
                f *= g / d;
                a *= g / a;
                d *= g / d;

                h = b - e;
                i = c - f;

                y = i / h;
                x = k - y * j;
                x /= l;
                y *= 1000;
                y = floor(y + 0.5);
                y /= 1000;
                x *= 1000;
                x = floor(x + 0.5);
                x /= 1000;

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

        return 0;
}

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

int main(void)
{
	float a = 0;
	float b = 0;
	float c = 0;
	float d = 0;
	float e = 0;
	float f = 0;

	float x = 0;
	float y = 0;

	while (std::cin >> a >> b >> c >> d >> e >> f)
	{
		float tmp_a = a * e;
		float tmp_c = c * e;
		float tmp_d = d * b;
		float tmp_f = f * b;

		if (tmp_c == tmp_f)
		{
			x = 0;
		}
		else
		{
			x = (tmp_c - tmp_f) / (tmp_a - tmp_d);
		}

		float tmp_b = b * d;
		tmp_c = c * d;
		float tmp_e = e * a;
		tmp_f = f * a;

		if (tmp_c == tmp_f)
		{
			x = 0;
		}
		else
		{
			y = (tmp_c - tmp_f) / (tmp_b - tmp_e);
		}

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

	return 0;
}

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

int main(int argc, const char *argv[]) {
    double a, b, c, d, e, f, x, y, det;
    for ( ; std::cin >> a >> b >> c >> d >> e >> f; ) {
        det = a * e - b * d;
        x = (e * c - b * f) / det;
        y = (a * f - d * c) / det;
        if (-0.0005 < x && x < 0.0005) x = 0.0001;
        if (-0.0005 < y && y < 0.0005) y = 0.0001;
        std::cout << std::fixed << std::setprecision(3) << x << " " << y << std::endl;
    }
    return 0;
}

C++: #include <stdio.h>
#include <math.h>

int main(){

int i;
double a[6];
double x,y;

while(scanf("%lf",&a[0])!=EOF){

for(i=1;i<6;i++)scanf("%lf",&a[i]);

x = (a[4]*a[2]-a[5]*a[1])/(a[4]*a[0]-a[3]*a[1]);

if(x==0) x=abs(x);

y = (a[3]*a[2]-a[5]*a[0])/(a[3]*a[1]-a[4]*a[0]);

if(y==0) y=abs(y);

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)
	{
		/*if (a == 0)
		{
			double x = (c * f - b * e) / d;
			double y = b / c;
			printf("%.3f %.3f\n", x, y);
		}
		else*/
		{
			double x = (c / a) - (a * b * f - b * c * d) / (a * a * e - a * b * d);
			double y = (a * f - c * d) / (a * e - b * d);
			printf("%.3f %.3f\n", x, y);
		}
	}

	return 0;
}