Go: package main

import (
	"fmt"
)

func main() {
	for {
		var a, b, c, d, e, f float64
		i, _ := fmt.Scan(&a, &b, &c, &d, &e, &f)
		if i == 0 {
			break
		}

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

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

C++: #include <sstream>
#include <iostream>
#include <iomanip>
#include <stdio.h>
#include <math.h>
#include <vector>
#include <string>
using namespace std;

int main(void) {
	double a=0,b=0,c=0,d=0,e=0,f=0;
	string rx,ry;
	vector<string> r;
	while (scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f) != EOF){
		double x=0,y=0;
		x = round((b*f-e*c)/(b*d-a*e)*1000+0.0001)/1000.0;
		y = round((a*f-d*c)/(a*e-b*d)*1000+0.0001)/1000.0;
		ostringstream os;
		os.setf(ios::showpoint);
		os << setprecision(4) << x << " " << y;
		r.push_back(os.str());
	}
	for (int i=0;i<r.size();i++)
	{
		cout << r[i] << endl;
	}
	return 0;
}

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

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

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

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

	cout << showpoint << setprecision(3);
	cout << setiosflags( ios::fixed );
	cout << ( x == -0.0 ? 0.0 : x ) << " " << ( y == -0.0 ? 0.0 : y ) << endl;
}

C++: #include<stdio.h>
#define rep(i,m,n) for(i = m;i < n;i++)
int main(){
	double a[6];
	int i,kcor = 0;
	double kx[1000] = {0},ky[1000] = {0};
	while(scanf("%d",a)!=-1){
		rep(i,1,6)
			scanf("%d",a+i);
		double det;
		det = a[0]*a[4]-a[1]*a[3];
		kx[kcor] = (a[4]*a[2]-a[1]*a[5])/det;
		ky[kcor] = (-a[3]*a[2]+a[0]*a[5])/det;
		kcor++;
	}
	rep(i,0,kcor){
		printf("%.3lf %.3lf\n",kx[i],ky[i]);
		//printf("%lf %lf\n",kx[i],ky[i]);
	}
	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){
        if(a<0){
            a=-a;
            b=-b;
            c=-c;
        }
        if(d<0){
            d=-d;
            e=-e;
            f=-f;
        }
        y=((c*d)-(a*f))/((b*d)-(a*e));
        x=((b*f)-(c*e))/((b*d)-(a*e));
        printf("%.3lf %.3lf\n",x,y);
    }
    return 0;
}

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

int main()
{
    using namespace std;
    double a, b, c, d, e, f, x, y;
    cout.precision(3);
    cout << fixed << showpoint;
    while (cin >> a >> b >> c >> d >> e >> f) {
        double coef = d/a;
        b *= coef; c *= coef;
        y = (c - f)/(b - e); y = round(y*1000)/1000;
        x = (f - e*y)/d; x = round(x*1000)/1000;
        cout << x << " " << y << endl;
    }
}

C++: #include <stdio.h>

int main(void)
{
	int a, b, c, d, e, f;
	double x, y;
	
	while(scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF){
		if(e*a > b*d){		
			x = (e*c - b*f) / (e*a - b*d);
			y = (d*c - a*f) / (e*a - b*d) * (-1);
		}
		else{
			x = (e*c - b*f) / (b*d - e*a) * (-1);
			y = (d*c - a*f) / (b*d - e*a);
		}

		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

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

using namespace std;

double delta(double o, double p, double q , double r, double s, double t) {

	//cout << "o=" << o << "s=" << s << "v=" << "r=" << "o*s-p*r=" << (o*s-p*r)  << endl;

	// |o  p ||x|   |q|
	// |r  s ||y| = |t|

	return (o*s-p*r);//a???o b???p c???q d???r e???s f???t
}

double deltacfbe(double o, double p, double q , double r, double s, double t) {

	//cout << "o=" << o<< "s=" << s << "p=" << "r=" << "q*s-p*t=" << q*s-p*t  << endl;

	// x = |q  p | /delta
	//     |t  s | 

	return (q*s-p*t);
}

double deltaadcf(double o, double p, double q , double r, double s, double t) {

	//cout << "o=" << o<< "s=" << s << "p=" << "r=" << "o*t-q*r=" << o*t-q*r  << endl;

	// y = |o  q | /delta
	//     |r  t | 

	return (o*t-q*r);
}

int main() {

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

	cout << setprecision(3) << (deltacfbe(a,b,c,d,e,f)/delta(a,b,c,d,e,f))  << (deltaadcf(a,b,c,d,e,f)/delta(a,b,c,d,e,f)) << 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 = (c*e - b*f) / (a*e - b*d);
	y = (c*d - a*f) / (b*d - a*e);

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

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

int main(){
	double a , b , c , d , e , f ,ans1 , ans2;
	while(cin>>a>>b>>c>>d>>e>>f){
		ans1=(double)((c*e-b*f)/(a*e-b*d));
		ans2=(double)((c*d-a*f)/(b*d-a*e));
		if (ans1==0) ans1=0;
		if (ans2==0) ans2=0;
		printf("%.3f %.3f\n" , ans1 , ans2);
	}
	return 0;
}

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

int main()
{
	double x, y;
	double a, b, c, d, e, f;
        int J = 1;

	while (J){

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

                if ( J == 0)
                         break;

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

		x *= 10000;
		x = x + 0.5 - (x < 0);
		x = (int)x;
		x /= 10000;

		y *= 10000;
		y = y + 0.5 - (y < 0);
		y = (int)y;
		y /= 10000;


		cout << setprecision(4) << showpoint << x << " " << y << endl;
	}

	return 0;
}

C++: #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) {
    a = a * 10000;
    b = b * 10000;
    c = c * 10000;
    d = d * 10000;
    e = e * 10000;
    f = f * 10000;
    
    int x, y;
    int det = a * e - b * d;

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

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

string toStr(int n) {
  int ipart = n / 10000;
  int fpart = (n - ipart * 10000) + 5;
  return intToString(ipart) + "." + intToString(fpart).substr(0, 3);
}

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

C++: #include<cstdio>
#include<vector>
#include<algorithm>
using namespace std;
int main(void){
	long long a, b, c, d, e, f;
	long long p, q, r;
	long long x, y, z;
	for (; scanf("%lld %lld %lld %lld %lld %lld", &a, &b, &c, &d, &e, &f) !=EOF;){
		c = c * 1000;
		f = f * 1000;
		p = (a*e) - (d*b);
		q = (c*e) - (f*b);
		x = q / p;
		p = (b*d) - (e*a);
		q = (c*d) - (f*a);
		y = q / p;
		if (x < 0){
			printf("-");
			x = -x;
		}
			printf("%lld.%03lld ", x / 1000, x % 1000);
			if (y < 0){
				printf("-");
				y = -y;
			}
		printf("%lld.%03lld\n", y / 1000, y % 1000);
	}
		return 0;
	}

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

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

int main(void){
	int a,b,c,d,e,f;
	a=b=c=d=e=f=0;
	float x=0.0f;
	float y=0.0f;
	while(scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF){
		x = (c*e-f*b)/(float)(a*e-b*d);
		y = (c*d-f*a)/(float)(b*d-e*a);
		x = (float)(x * 1000 + 0.5)/1000;
		y = (float)(y * 1000 + 0.5)/1000;
		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) {
		//A*x=y
		//x=A^-1*y

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

C++: #include<iostream>
#include<iomanip>
#include<cmath>
#include<algorithm>
#include<string>
#include<cctype>
#include<vector>
#include<queue>
#include<map>
using namespace std;

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

	while (cin >> a >> b >> c >> d >> e >> f) {
		//a*d-b*c=0:?§£??????
		G = 1 / (a*e - b*d);
		x = G*(e*c + (-b)*f);
		y = G*((-d)*c + a*f);
		if (fabs(x) < 1e-3) x = 0;
		if (fabs(y) < 1e-3) y = 0;
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}

	return 0;
}