Go: package main

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

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
                if x == 0.0 {
                        x = math.Abs(x)
                }
                if y == 0.0 {
                        y = math.Abs(y)
                }
                fmt.Printf("%.3f %.3f\n", x, y)
        }
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(void){
    int a,b,c,d,e,f;
    double x,y;
    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);
        if(x == 0) x = 0.000;
        if(y == 0) y = 0.000;
        cout<<fixed<<setprecision(3)<<x<<" "<<y<<endl;
    }
    return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <utility>
using namespace std;
typedef pair<double, double> PDD;
PDD calc(double mat[2][2], double vec[2]){
  double a = mat[0][0], b = mat[0][1], d = mat[1][0], e = mat[1][1];
  double c = vec[0], f = vec[1];
  double det = a * e - d * b;
  return make_pair((e * c - b * f) / det, (-c * d + a * f) / det);
}
int main(){
  double mat[2][2];
  double vec[2];
  while(cin >> mat[0][0] >> mat[0][1] >> vec[0] >> mat[1][0] >> mat[1][1] >> vec[1]){
    PDD res = calc(mat, vec);
    double x = (double)(round(res.first*100))/100.0, y = (double)(round(res.second*100))/100.0;
    printf("%.3f %.3f\n", x, y);
  }
  return 0;
}

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

using namespace std;
float a,b,c,d,e,f;
float findoutx,findouty;
float x,y,yadd;
float Timers1,Timers2;
int main()
{
    while(cin >> a >> b >> c >> d >> e >> f)
    {
    Timers1 = a;
    Timers2 = d;
    a=a*Timers2;
    b=b*Timers2;
    c=c*Timers2;
    d=d*Timers1;
    e=e*Timers1;
    f=f*Timers1;

    findouty=b-e;
    yadd = c-f;
    findouty = yadd/findouty;
    b = b*findouty;
    findoutx=(c-b)/a;



    cout<<fixed<<setprecision(3)<<findoutx << " "<<findouty<<endl;  
    }


}

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

int main(){
	float a,b,c,d,e,f,x,y;
	
	scanf("%f%f%f%f%f%f",&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("%.3f%.3f",x,y);
	
	return 0;
	
	}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(){
double a,b,c,d,e,f,x,y;
while(cin>>a>>b>>c>>d>>e>>f){
y=(c*d-f*e)/(b*d-a*e);
x=(c-b*y)/a;
cout<<setprecision(3)<<x<<y<<endl;}
return 0;}

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

using namespace std;

int main()
{
	double A, B, C, D, E, F, X, Y, G , H;

	while(cin >> A >> B >> C >> D >> E >> F)
	{
		X=(C*E-F*B)/(A*E-D*B);
		Y=(A*F-D*C)/(A*E-D*B);

		if(X==0){
			X=0;
		}

		if(Y==0){
			Y=0;
		}

		printf("%.3f %.3f\n",X,Y);
	}
}

C++: #include <stdio.h>
double round3(double a){
	a=a*10000;
	if(int(a)%10>=5){
		a=a+10-int(a)%10;
	}else{
		a=a-int(a)%10;
	}
	a=a/10000;
	return a;

}
int main(){
	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(a==0){
			y=c/b;
			x=(f-e*y)/d;
		}else if(b==0){
			x=c/a;
			y=(f-d*x)/e;
		}else if(d==0){
			y=f/e;
			x=(c-b*y)/a;
		}else if(e==0){
			x=f/d;
			y=(c-a*x)/b;
		}else{
			y=(c*d-a*f)/(b*d-a*e);
			x=(c-b*y)/a;
		}
		
		x=round3(x);
		y=round3(y);
		
		printf("%0.3lf %0.3lf\n",x,y);
	}
	return 0;
}

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

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

C++: #include <stdio.h>

int main(void){
	double a, b, c, d, e, f;
	while(scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f) != EOF){
		double x = (c * e - b * f) / (a * e - b * d);
		double y = (-c * d + a * f) / (a * e - b * d);
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}

C++: #include<cstdio>
int main(){
    float a[6];
    float x,y;
    while(~scanf("%f",&a[0])){
        for(int i=1;i<6;i++){
            scanf("%f",&a[i]);
        }
        y=(a[2]-(a[5]*(a[0]/a[3])))/(a[1]-(a[4]*(a[0]/a[3])));
        x=(a[2]-a[1]*y)/a[0];
        printf("%.3f %.3f\n",x,y);
    }
}

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

int main()
{
	double a, b, c, d, p, q;
	double x, y;
	double det;
	
	while (cin >> a >> b >> p >> c >> d >> q) {
		det = a * d - b * c;
		x = (d * p - b * q) / det;
		y = (a * q - c * p) / det;
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <cstdio>
#include <cmath>
using namespace std;
const double eps = 1e-3;

bool equals(double a, double b) {
  return abs(a-b) < eps;
}

int main() {
  int a, b, c, d, e, f;
  while(cin >> a >> b >> c >> d >> e >> f) {
    double y = (d*c-a*f)/(double)(d*b-a*e);
    double x = (f-e*y)/(double)d;
    if(equals(x,0.0)) x = 0;
    if(equals(y,0.0)) y = 0;
    printf("%.3f %.3f\n", x, y);
  }
  return 0;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(void){
    int a,b,c,d,e,f,g,x,y;
    double ansX,ansY;
    while(std::cin >> a >> b >> c >> d >> e >> f ){
        y = - d * b;
        y += e;
        g = d * c;
        g *= -1;
        g += f;
        
        if(g != 0 && y != 0)
            ansY = g / y;
        else
            ansY = 0;
            
        x = b * ansY;
        x *= -1;
        
        ansX = c + x;
        
        std::cout<< fixed<< setprecision( 3 )<< ansX<< " "<<ansY<< std::endl;
    }
    return 0;
}

C++: #include<stdio.h>
int main(void){

	double a, b, c, d, e, f;
	double A,B;
	double x, y;

	while(scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) != EOF){
		 
	 
	 if ( (a > 0 && d <　0)|| (a > 0 && d > 0)) {
		A = c*d - f*a;
		B = b*d - e*a;
        y = A / B;
    }
    
    else if ((a <= 0 && d >= 0) || (a <= 0 && d <= 0)) {
		A = c*d + f*a;
		B = b*d + e*a;
        y = A / B;
    }


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

}

C++: #include <stdio.h>

int main(){
    double a,b,c,d,e,f;
    double x,y;
    
    while (scanf("%lf %lf %lf %lf %lf %lf",&a,&b,&c,&d,&e,&f) != EOF) {
        x=(double)((c*e-b*f)/(a*e-b*d));
        y=(double)((c*d-a*f)/(b*d-a*e));
        if(a*e-b*d==0||b*d-a*e==0){
            return 1;
        }
        if(x==-0){
            x=0;
        }
        if(y==-0){
            y=0;
        }
        printf("%.3f %.3f\n",x,y);
    }
    
    return 0;
}

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



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