Go: package main

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

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		strNums := strings.Fields(scanner.Text())
		nums := []int{}
		for _, strNum := range strNums {
			num, _ := strconv.Atoi(strNum)
			nums = append(nums, num)
		}
		a := nums[0]
		b := nums[1]
		c := nums[2]
		d := nums[3]
		e := nums[4]
		f := nums[5]
		var mulA, mulD int
		if a < 0 {
			mulA = a * -1
		} else {
			mulA = a
		}
		if d < 0 {
			mulD = d * -1
		} else {
			mulD = d
		}
		a *= mulD
		b *= mulD
		c *= mulD
		d *= mulA
		e *= mulA
		f *= mulA

		if d < 0 {
			d *= -1
			e *= -1
			f *= -1
		}

		bE := b - e
		cF := c - f
		if bE == 0 {
			bE = 1
		}
		y := cF / bE
		x := (c - (y * b)) / a

		fmt.Print(x)
		fmt.Println(".000")
		fmt.Print(y)
		fmt.Println(".000")
	}
}

C++: #include <iostream>
#include <string>
#include <algorithm>
#define REP(i, n) for(i = 0; i < n; i++)
const int n = 2;
int main()
{
    double a, b, c, d, e, f;
    int i, j;
    while(std::cin >> a >> b >> c >> d >> e >> f)
    {
        double A[n][n + 1] {
            {a, b, c},
            {d, e, f}
        };
        REP(i, 3) A[0][i] /= a;
        REP(i, 3) A[1][i] -= d * A[0][i];
        double d1 = A[1][1];
        REP(i, 3) A[1][i] /= d1;
        REP(i, 2) REP(j, 3)
        {
            int roundtmp = 1000;
            A[i][j] *= roundtmp;
            A[i][j] = int(A[i][j] + 0.5 - (A[i][j] < 0));
            A[i][j] /= roundtmp;
        }
        std::cout.precision(4);
        std::cout << std::showpoint << A[0][2] - A[0][1] * A[1][2] << " " << A[1][2] << std::endl;
    }
}

C++: #include <cstdio>
using namespace std;
double eps=1e-9;
int main(){
	double a,b,c,d,e,f;
	while(scanf("%lf%lf%lf%lf%lf%lf",&a,&b,&c,&d,&e,&f)!=EOF) printf("%.3f %.3f\n",(c*e-b*f)/(a*e-b*d)+eps,(a*f-c*d)/(a*e-b*d)+eps);
	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){
		x = ((c*e-b*f)/(a*e-b*d))/1.0;
		y = ((a*f-c*d)/(a*e-b*d))/1.0;
		if(x == -0.0) x = 0.0;
		if(y == -0.0) y = 0.0;
		cout << fixed << setprecision(3);
		cout << x << " " << y << endl;
	}
}

C++: #include<iostream>
#include<iomanip>
#include<cmath>
using namespace std;
#define EPS (5.0e-4)

int main(){
	double a,b,c,d,e,f;
	double x,y;
	while(cin>>a>>b>>c>>d>>e>>f){
		b=d*b-a*e;
		c=d*c-a*f;
		y=c/b;if(abs(y)<EPS) y=0;
		x=(f-e*y)/d;if(abs(x)<EPS) x=0;
		cout<<setprecision(3)<<setiosflags(ios::fixed)<<x<<" "<<y<<endl;
	}
	return 0;
}

C++: #include<stdio.h>
int main(void)
{
	float e2,f2,c2;
	float a1,b1,c1,d1,e1,f1;
	float a,b,c,d,e,f;
	float add,x,y;
	while(scanf("%f %f %f %f %f %f",&a,&b,&c,&d,&e,&f)!=EOF){
		add=a/d;
		a1=a;
		b1=b;
		c1=c;
		d1=d*add;
		e1=e*add;
		f1=f*add;
		e2=b-e1;
		f2=c-f1;
		y=f2/e2;
		add=b/e;
		a1=a;
		b1=b;
		c1=c;
		d1=d*add;
		e1=e*add;
		f1=f*add;
		a1=a-d;
		c2=c-f1;
		x=c2/a1;
		printf("%f %f\n",x,y);
	}
	return 0;
}
/*
1x+2y=3
4x+5y=6
a  b  c
1x+2y=3;
1.6x+2y=1.2
d    e   f
-0.4x=1.8
*/

C++: #include <stdio.h>

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

	while(1){
		if(scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) != 6){
			break;
		}

		ratio = 1 /(a*e - b*d);
		x = ratio * (e * c + -1 * b * f);
		y = ratio * (-1 * d * c + a * f);

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

	return 0;
}

C++: //include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <complex>
#include <math.h>
using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<long, long> PLL;
typedef long long LL;
//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(long i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

const long double EPS = 1e-12;
const double INF = 1e12;

long double to_deg(long double r) {
    return r * 180.0 / (atan(1.0) * 4.0);
}
int main(){
	double a,b,c,d,e,f;
	while(cin>>a>>b>>c>>d>>e>>f){
		double x=(e*c-b*f)/(a*e-b*d);
		double y=(a*f-c*d)/(a*e-b*d);
		if(abs(x)<EPS)x=0;
		if(abs(y)<EPS)y=0;
		cout<<fixed<<setprecision(3)<<x<<" "<<y<<endl;
	}
	return 0;
}

C++: #include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <ctime>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;

#define all(c) (c).begin(), (c).end()
#define pb push_back
#define mp make_pair
#define EXIST(v,i) (find(all(v), i) != (v).end())
#define ERASE(v,i) (v).erase(remove(all(v), i), (v).end())
#define INDEX(v,i) (find(all(v), i) - (v).begin())
#define rep(i,n) for(int i = 0; i < (int)n; ++i)
#define debug(x) cerr << #x << " = " << (x) << endl;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

const int INF = 100000000;
const double PI = 3.14159265358979323846;
const double EPS = 1e-10;

int main() {
	double a, b, c, d, e, f;
	while(~scanf(" %lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f)) {
		printf("%.3f %.3f\n", (e * c - b * f) / (a * e - b * d) + 0.0, (a * f - c * d) / (a * e - b * d) + 0.0);
	}
	return 0;
}

C++: #include <cstdio>

using namespace std;

int main()
{
  long long a, b, c, d, e, f;
  while(scanf("%lld%lld%lld%lld%lld%lld", &a, &b, &c, &d, &e, &f) != EOF){
    long long g = e * a;
    long long h = f * a;
    long long i = b * d;
    long long j = c * d;
    long long k = i - g;
    long long l = j - h;
    double y = (double)l / (double)k;
    double x = (double)(c - b*y) / (double)a;

    printf("%lf %lf\n", x, y);
  }
  return 0;
}