Go: package main

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

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
                fmt.Printf("%04f %04f\n", x, y)
        }
}

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

#define REP(i, a) for(int i=0;i<(int)a;++i)
using namespace std;

void solver() {
    double a, b, c, d, e, f;
    while (cin >> a >> b >> c >> d >> e >> f) {
        auto x=(c*e-b*f)/(a*e-b*d);
        auto y=(c-a*x)/b;
        if(x<0.00005) x=0;
        if(y<0.00005) y=0;
        printf("%.3f %.3f\n",x,y);
    }
}

int main() {
    solver();
    return 0;
}

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


double a,b,c,d,e,f;
double x,y;//x,y座標
int main(){
  while(scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f) !=EOF){

      x =(c*e - b*f)/(a*e - d*b);
      y =(c -a*x)/b;
    if(y > 0){
      y =floor((y+0.0005)*1000)/1000;
    }
    if(y < 0){
      y = -1*(floor((fabs(y)+0.0005)*1000)/1000);
    }
    if(x > 0){//小数第4位を四捨五入
      x =floor((x+0.0005)*1000)/1000;
    }
    if(x <0){
      x = -1*(floor((fabs(x)+0.0005)*1000)/1000);
    }
    if(x == 0){x =0.000;}
    if(y == 0){y =0.000;}
    printf("%.3f %.3f\n",x,y);
  }
  return 0;
}

C++: #include <iostream>
#include <array>
#include <vector>
#include <cmath>
#include <iomanip>

using namespace std;

//?????¨?????\
double round_four(double value){
    //0??????
    if (value <= 0.00001 && value >= -0.00001){
        return 0;
    }
    //?????????
    value *= 1000;
    value += (value / fabs(value)) * 0.5;
    int nValue = static_cast<int>(value);
    value = static_cast<double>(nValue) / 1000;
    return value;
}

//????¬?????¨?????§£
array<double, 2> comp_linear_equation(int a, int b, int c, int d, int e, int f){
    array<double, 2> result;
    result[0] = static_cast<double>(e * c - (f * b));
    result[1] = static_cast<double>(-(d * c) + a * f);
    double num = 1.0 / ((a * e) - (b * d));
    result[0] *= num;
    result[1] *= num;
    result[0] = round_four(result[0]);
    result[1] = round_four(result[1]);
    return result;
}

//?????????
int main(){
    int a, b, c, d, e, f;
    vector<array<double, 2>> result;
    while (cin >> a >> b >> c >> d >> e >> f){
        result.push_back(comp_linear_equation(a, b, c, d, e, f));
    }
    for (const auto& element : result){
        cout << fixed << setprecision(3) << element[0] << " " << element[1] << endl;
    }
    return 0;
}

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

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

C++: #include<stdio.h>

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

C++: const int tt = 10000;

#include<iostream>
#include<string>
#include<sstream>
using namespace std;

string toStr(int n);
string intToString(int n);

int main() {
  int a, b, c, d, e, f;
  
  while(cin >> a >> b >> c >> d >> e >> f) {
    c = c * tt;
    f = f * tt;

    int det = a * e - b * d;

    int x = ( e * c - b * f) / det;
    int y = (-d * c + a * f) / det;
//    cout << x << y << endl;

    cout << toStr(x) << " " << toStr(y) << endl;
  }
}

string toStr(int n) {
  string pm, val;
  
  if (n < 0) {
    pm = "-";
    n = -n;
  } else {
    pm = "";
  }

  int ipart = n / tt;
  int fpart = (n - ipart * tt) + tt + 5;

  val = pm + intToString(ipart) + "." + intToString(fpart).substr(1, 3);
  return val;
}

string intToString(int n) {
  stringstream ss;
  ss << n;
  return ss.str();
}

C++: #include<iostream>
#include<vector>
#include<algorithm>
#include<functional>
#include<iomanip>
using namespace std;
double round3d (double d) {
	return (double)((int)(d * 1000.0 + 0.5 - (d < 0) )) / 1000.0;
}
int main(){
	while (true) {
		double a, b, c, d, e, f;
		cin >> a >> b >> c >> d >> e >> f;
		if (cin.eof()) break;
		double x = (b * f - e * c) / (b * d - a * e);
		double y = (c * d - a * f) / (b * d - a * e);
		cout << setprecision(3) << fixed << round3d(x) << " " << round3d(y) << "\n";
	}
    return 0;
}

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

using namespace std;

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


double x(double, double, double, double, double, double) {

	return (c*e - b*f) / (a*e - b*d);
}

double y(double, double, double, double, double, double) {

	return (a*f - c*d) / (a*e - b*d);
}

double ttround(double dat, int keta ){

	int fct;
	fct = (int)pow(10, keta - 1);
	dat *= fct;
	dat += (dat < 0) ? -0.5 : 0.5;
	dat = (int)(dat);
	dat /= fct;
	return dat;
}

int main()
{
	double x1, x2, y1, y2;
	cin >> a >> b >> c >> d >> e >> f;

	x1 = x(a, b, c, d, e, f);
	y1 = y(a, b, c, d, e, f);

	cin >> a >> b >> c >> d >> e >> f;

	x2 = x(a, b, c, d, e, f);
	y2 = y(a, b, c, d, e, f);

	cout << fixed << setprecision(3) << ttround(x1,3) << " " << ttround(y1,3) << endl;
	cout << fixed << setprecision(3) << ttround(x2,3) << " " << ttround(y2,3) << endl;

	return 0;
}

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

int main(){
	double a,b,c,d,e,f;
	while(cin>>a>>b>>c>>d>>e>>f){
		double det = a*e-b*d;
		double x = 1/det*(c*e - b*f);
		double y = 1/det*(-c*d + a*f);	
        if(x<0.0001)x=0;
        if(y<0.0001)y=0;

		cout << fixed << setprecision(3) << x << ' ' << y <<endl;
	}
	return 0;
}

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;
}