Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

func nextString() string {
	scanner.Scan()
	return scanner.Text()
}

func nextFloat64() (float64, error) {
	return strconv.ParseFloat(nextString(), 64)
}

func mathRound(f float64) float64 {
	return math.Floor(f + .5)
}

func round(x float64) float64 {
	if math.Abs(x) < 0.001 {
		return 0
	}
	return mathRound(x*1000) / 1000
}

func main() {
	scanner.Split(bufio.ScanWords)
	for {
		a, err := nextFloat64()
		if err != nil {
			break
		}
		b, _ := nextFloat64()
		c, _ := nextFloat64()
		d, _ := nextFloat64()
		e, _ := nextFloat64()
		f, _ := nextFloat64()

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

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

C++: #include<iostream>
#include<iomanip>
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)((c*e - b*f)/(a*e - b*d) * 100) / 1000.0;
        y = (double)((d*c - a*f)/(b*d - a*e) * 100) / 1000.0;
        x = (x == -0.0) ? 0.000 : x;
        y = (y == -0.0) ? 0.000 : y;
        cout << fixed << setprecision(3);
        cout << x << " " << y << endl;
    }
    return 0;
}

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


using namespace std;


int main() {
    cout << fixed << setprecision(3);
     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;

        cout << x << " " << y << "\n";
    }

	return 0;
}

C++: #include<stdio.h>
int main(void)
{
	int b,a,e,d,f,i,c;
	float y,x;
	while(scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f)!=EOF)  {
			y=(c*d-a*f)/(b*d-a*e);
			x=(c-(b*y))/a;
		if(x<=0.0000 && x>-0.0000001){
			x=0.0000;
		}
		if(y<=0.000&&y>-0.0000001){
			y=0.0000;
		}	
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}

C++: #include<stdio.h>
int main(){
	double a,b,c,d,e,f,x,y;
	//while(scanf_s("%f",&a)!=EOF){
	while(scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f)!=EOF){
	y=(c*d-a*f)/(b*d-a*e);
	x=(c*e-b*f)/(a*e-b*d);
	printf("%.3lf %.3lf\n",x,y);
	}
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;

int main(){

  int a,b,c,d,e,f;
  double 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);

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

}

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

int main() {
  double a, b, c, d, e, f, x, y, det;
  while(cin >> a >> b >> c >> d >> e >> f) {
    det = 1.0/(a*e - b*d);
    x = (c*e - b*f)*det;
    y = (a*f - c*d)*det;

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

  return 0;
}

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

using namespace std;
typedef vector<int> vi;
int a,b,c,d,e,f;
int main(){
	while(cin>>a>>b>>c>>d>>e>>f){
		int x=(c*e-b*f)/(a*e-b*d);
		int y=(c*d-a*f)/(b+d-a*e);
		printf("%.3f %.3f",x,y);
	}
  return 0;
}

C++: #include <stdio.h>

int main(){
	int i,j;
	int a,b,c,d,e,f;
	int tmp;
	float x,y;
		
	while(scanf("%d %d %d %d %d %d\n",&a,&b,&c,&d,&e,&f)!=EOF){
		tmp = d;
		d*=a; e*=a; f*=a;
		a*=tmp; b*=tmp; c*=tmp;
		y=(float)((c-f)/(b-e));
		x=(float)((c-b*y)/a);
		if(x==-0.000000){
			x = 0.000000;
		}
		if(y==-0.000000){
			y = 0.000000;
		}
		printf("%0.3f %0.3f\n",x,y);
	}
	
	
	return 0;
}

C++: #include<iostream>

int main(void)
{
	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), y);
	}
}

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

double sisya(double x)
{
	double a = x;
	if(x < 0)
		a = -x;
			a = a*1000;
	a = a - static_cast<double>(static_cast<int>(a));
	a = a+0.5;
	if(a >= 1.0){
		return x + 0.001;
	}
	return x;
}

int main()
{
	double a,b,c,d,e,f;
	double x,y;
	while (cin >> a && cin >> b && cin >> c && cin >> d && cin >> e && cin >> f){
		x = (f/e - c/b) / (d/e - a/b) ;
		x = sisya(x);
		y = (f/d - c/a) / (e/d - b/a) ;
		y = sisya(y);
		cout << setprecision(3) << fixed << x << " " <<  setprecision(3) << fixed << y << endl;
	}
	return 0;
}

C++: #include<iostream>
#include<algorithm>
#include<vector>
#include<cmath>
#include<cstdio>
#include<string>


using namespace std;


double solveY(int a,int b,int c,int d,int e,int f){
	double ret;
	ret=(double)(a*f-d*c)/(a*e-b*d);
	return ret;
}

int main(){
	while(1){
		int a,b,c,d,e,f;
		if( !(cin>>a>>b>>c>>d>>e>>f) )break;
		double y=solveY(a,b,c,d,e,f);
		double x=(c-b*y)/a;
		printf("%5.3lf %5.3lf\n",x,y);
	}
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
int a,b,c,d,e,f;
float A,B,C,D,E,F,X,Y;
while(cin>>a>>b>>c>>d>>e>>f){
C=c;
B=b;
A=a;
E=e*a/d;
F=f*a/d;
Y=(C-F)/(B-E);
X=(C-B*Y)/A;
cout<<X<<Y<<endl;
}
}

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

C++: 
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <stack>
#include <cctype>
#include <complex>
#include <vector>
#include <algorithm>

using namespace std;


bool solve(){

	float a,b,c,d,e,f,g;
	while(cin>> a>> b>> c>> d>> e>> f){
		float x = (1.0/(a*e-b*d)) * (e*c - b*f);
		float y = (1.0/(a*e-b*d)) * (-c*d + a*f);
		if(-0.001<x && x<=0) x = 0;
		if(-0.001<y && y<=0) y = 0;
		printf("%.3f %.3f",x, y);
		printf("\n");
	}
	return true;
}

int main(){
	cout.setf(ios::fixed);
	cout.precision(10);
	solve();

	return 0;
}

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

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

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

}

C++: #include <iostream>
#include <vector>
#include <algorithm>
#include <cstdio>
#define rep(x,to) for(x=0;x<to;x++)
#define rep2(x,from,to) for(x=from;x<to;x++)

using namespace std;


int main(void){

int a,b,c,d,e,f;
double x,y;
	while(cin >> a >> b >> c >> d >> e >> f) {
		y=(c*1.0/a - f*1.0/d)/(b*1.0/a - e*1.0/d) + 0.0001;
		x=(c-b*y*1.0)/a + 0.0001;
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}

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

int main(){
	int count = 0;
	double x[100],y[100];
	double a, b, c, d, e, f;
	while(cin >> a >> b >> e >> c >> d >> f){
		x[count] = (e*d-b*f)/(a*d-b*c);
		y[count] = (a*f-e*c)/(a*d-b*c);
		if(x[count] == -0){
			x[count] = 0;
		}
		if(y[count] == -0){
			y[count] = 0;
		}
		count++;
	}
	for(int i = 0; i < count; i++){
		cout << fixed << setprecision(3) << x[i] << " " << y[i] << endl;
	}
}