Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func read() string {
	sc.Scan()
	return sc.Text()
}

func main() {
	sc.Split(bufio.ScanLines)
	for sc.Scan() {
		s := strings.Split(sc.Text(), " ")
		a, _ := strconv.ParseFloat(s[0], 64)
		b, _ := strconv.ParseFloat(s[1], 64)
		c, _ := strconv.ParseFloat(s[2], 64)
		d, _ := strconv.ParseFloat(s[3], 64)
		e, _ := strconv.ParseFloat(s[4], 64)
		f, _ := strconv.ParseFloat(s[5], 64)
		x := ((b * f) - (c * e)) / ((b * d) - (a * e))
		y := ((a * f) - (c * d)) / ((a * e) - (b * d))
		if x == 0 {
			fmt.Printf("0.000 %.3f\n", y)
		} else if y == 0 {
			fmt.Printf("%.3f 0.000\n", x)
		} else {
			fmt.Printf("%.3f %.3f\n", x, y)
		}
	}
}

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

int main(){
	float a, b, c, d, e, f, x, y;
	while(cin >> a >> b >> c >> d >> e >> f){
		x = (b * f - c * e) / (b * d - a * e);
		y = (c - a * x) / b;
	}
	if(x > 0) {
		x += 0.0005;
	}
	else if(x < 0){
		x -= 0.0005;
	}
	if(y > 0){
		y += 0.0005;
	}
	else if(y < 0){
		y -= 0.0005;
	}
	cout << fixed << setprecision(3) << x << ' ' << y << endl;
	return 0;
}

C++: #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 y = (c / a - f / d) / (b / a - e / d);
        auto x = (c - b * y) / a;
        cout<<fixed;
        cout<<setprecision(3);
        cout<<x<<" "<<y<<endl;
    }
}

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