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)
        }
}

Python: # -*- coding: utf-8 -*-

while True:
    try:
        list = [float(x) for x in raw_input().split() ]
        x = (list[2]*list[4]-list[1]*list[5])/(list[0]*list[4]-list[1]*list[3])
        y = (list[0]*list[5]-list[2]*list[3])/(list[0]*list[4]-list[1]*list[3])

        print("%.3f %.3f" %(x, y))

    except EOFError:
        break

Python: # Vol0004.
import sys

def main():
    data = []
    lines = sys.stdin.readlines()
    fp.close()

    for line in lines:
        data.append(line.split())  # スペース区切りで放り込む
    # ax + by = c, dx + ey = fの解は、
    # x = (ce - bf) / (ae - bd), y = (af - cd) / (ae - bd).
    # これをround(float, 3)すれば答えが出る。
    N = len(data)
    for i in range(N):
        for k in range(6):
            data[i][k] = int(data[i][k])
        det = data[i][0] * data[i][4] - data[i][1] * data[i][3]
        gx = data[i][2] * data[i][4] - data[i][1] * data[i][5]
        gy = data[i][0] * data[i][5] - data[i][2] * data[i][3]
        if det < 0:
            det = -det;
            if gx != 0: gx = -gx
            if gy != 0: gy = -gy
        print("{0:.3f}".format(gx / det) + " " + "{0:.3f}".format(gy / det))

if __name__ == "__main__":
    main()

# 補足、0.1とか0.22でも3桁目まで表示しないとWrongになる。
# 表示するにはprint("{0:.nf}".format(数))ってやる(nのところは桁数)。
# さらに、0を負の数で割ると表示が-0.000になってしまうのでそこの処理も重要。

Python: while True:
    try:
        a,b,c,d,e,f = map(int, input().split())
    except EOFError:
        break
    x = c/a + (f*a-c*d)*b / (e*a-d*b) / a
    y = (f*a - c*d) / (e*a - b*d)
    print('{:.3f} {:.3f}'.format(x, y))

Python: try:
    while True:
        a,b,c,d,e,f=map(int, input().split())
        y = (a*f - c*d) / (a*e - b*d)
        x = (c - b*y) / a
        
        print('{:.03f}'.format(x), '{:.03f}'.format(y))
      
except:
    pass

Python: try:
    while True:
        a,b,c,d,e,f=[int(i) for i in input().split(" ")]
        x=(e*c-b*f)/(a*e-b*d)
        y=(a*f-c*d)/(a*e-b*d)
        if x==0:
            x=0
        if y==0:
            y=0
        print("%.3f %.3f"%(x,y))
except EOFError:
    pass

Python: import sys

lines = sys.stdin.readlines()
for line in lines:
    a, b, c, d, e, f = map(float, line.split())
    A = a * e - b * d
    if A == 0:
        break;
    x = (c * e - b * f) / A
    y = (a * f - c * d) / A
    print("%.3f %.3f" %(x,y))

Python: import sys
for line in sys.stdin:
    a, b, c, d, e, f = map(int, line.split())
    x = (c*e - b*f) / (a*e - b*d)
    y = (a*f - c*d) / (a*e - b*d)
    if x == -0.0:
        x = 0
    if y == -0.0:
        y = 0
    print('{:.3f} {:.3f}'.format(x, y))

Python: while True:
    try:
        a,b,c,d,e,f = (float(x) for x in input().split())
        x = (c * e - b * f) / (a * e - b * d)
        y = (c * d - a * f) / (b * d - a * e)
    except:
        break

    x = round(x, 3)
    y = round(y, 3)

    if x == -0.000:
        x = 0.000
    elif y == -0.000:
        y = 0.000

    print("{0:.3f} {1:.3f}" . format(x, y))

Python: while 1:
    try:
        a,b,c,d,e,f=map(float,input().split())
        y = (c*d-a*f)/(b*d-a*e)
        x = (c-b*y)/a    
        print(f'{x:.3f} {y:.3f}')
    except:
        break

Python: import sys
import math
def simeq(a,b,c,d,e,f):
    return ((c*e-b*f)/(a*e-b*d)+0,((a*f-c*d)/(a*e-b*d))+0)

if __name__ == '__main__':
    for line in sys.stdin:
        (a,b,c,d,e,f) = map(float,line.split())
        (x,y) = simeq(a,b,c,d,e,f)
        print("{:.3f} {:.3f}".format(round(x,3),round(y,3)))

Python: import numpy as np

Python: import numpy as np

while 1:
    try:
        a = list(map(float, input().split()))
        A = np.array([[a[0],a[1]],
                      [a[3],a[4]]])
        b = np.array([a[2],a[5]])
        x = np.linalg.solve(A, b)
        print(x)
    except:
        break

Python: import sys

for line in sys.stdin:
    a,b,c,d,e,f=list(map(int,line.split()))
    x=(c*e-b*f)/(a*e-b*d)
    y=(a*f-c*d)/(a*e-b*d)
    print("{0:.3f} {1:.3f}".format(x,y))

Python: from decimal import Decimal, ROUND_HALF_UP
while True:
    try:
        a, b, c, d, e, f = map(float, input().split())
        x = (c * e - b * f) / (a * e - b * d) + 0.0
        y = (c * d - a * f) / (b * d - a * e) + 0.0
        print(Decimal(str(x)).quantize(Decimal('0.001'), rounding=ROUND_HALF_UP), Decimal(str(y)).quantize(Decimal('0.001'), rounding=ROUND_HALF_UP))
    except:
        break

Python: while True:
  try:
    a,b,c,d,e,f=map(float,input().split())
    x=(c*e-b*f)/(a*e-b*d)
    y=(c*d-a*f)/(b*d-a*e)
    if x==-0: x=0
    if y==-0: x=0
    print(f'{x:.3f} {y:.3f}')
  except EOFError: break

Python: import sys
for e in sys.stdin:
 a,b,c,d,e,f=map(int,e.split())
 print("%.3f %.3f"%((c*e-b*f)/(a*e-b*d)+0,(c*d-a*f)/(b*d-a*e)+0))

Python: while True:
    try:
        a,b,c,d,e,f = map(int,input().split())
    except:
        break

    A = a*e - b*d
    x = (e*c - b*f)/A
    y = (a*f - d*c)/A
    # 出力の体裁を整え、-0.00を0.00にするため+0する
    print("{:.3f} {:.3f}".format(x+0,y+0))

Python: answers=[]
while True:
    try:
        numbers=input().split()
        for i in range(6):
            numbers[i]=float(numbers[i])
        times=numbers[0]/numbers[3]
        numbers[3]=numbers[3]*times
        numbers[4]=numbers[4]*times
        numbers[5]=numbers[5]*times
        y=(numbers[2]-numbers[5])/(numbers[1]-numbers[4])
        x=(numbers[2]-numbers[1]*y)/numbers[0]
        answers.append(x)
        answers.append(y)
    except:
        break

for i in range(len(answers)/2):
    print(answers[i*2],answers[i*2+1])

Python: import sys
import numpy as np

for i in sys.stdin:
    a,b,c,d,e,f=list(map(float, i.split()))
    A=np.matrix([[a,b],[d,e]])
    inv_A = np.linalg.inv(A)
    P=np.matrix([[c],[f]])
    X=inv_A.dot(P)
    print("{0:.3f} {1:.3f}".format(X[0,0], X[1,0]))

Python: while True:
    try:
        (a, b, e, c, d, f) = map(float, input().split())

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

        if abs(x) < 1e-4:
            x = 0.0
        if abs(y) < 1e-4:
            y = 0.0

        print("{0:.3f} {1:.3f}".format(x, y))

    except EOFError:
        break

Python: def get_input():
    while True:
        try:
            yield "".join(input())
        
        except EOFError:
            break

if __name__ == "__main__":
    array = list(get_input())
    for i in range(len(array)):
        temp_a,temp_b,temp_c,temp_d,temp_e,temp_f = array[i].split()
        
        a,b,c,d,e,f = int(temp_a),int(temp_b),int(temp_c),int(temp_d),int(temp_e),int(temp_f)
        
        if a!=0:
            if e-b*d/a !=0:
                y = (f-c*d/a)/(e-b*d/a)
                x = (c - b*y)/a
            else:
                print("cannot solve equation")
        else:
            if b!=0:
                y = c/b
                if d!=0:
                    x = (f -e*y)/d
                else:
                    print("cannot solve equation")
                
        
        print("{:.3f} {:.3f}".format(x,y))

Python: from sys import stdin
for line in stdin:
    a, b, c, d, e, f = map(float, line.split())
    print('%.3f %.3f' % ((c * e - f * b) / (a * e - b * d), (c * d - a * f) / (b * d - a * e)) )

Python: import sys

for line in sys.stdin:
    a,b,c,d,e,f = [float(w) for w in line.split()]
    
    print("{:.3f} {:.3f}".format((e*c-b*f)/(a*e-a*b), (d*c-a*f)/(b*d-a*e)))