Go: package main

import (
  "fmt"
)

func main() {
  var a,b,c,d,e,f float64
  var x,y float64
  for _, err := fmt.Scan(&a, &b, &c, &d, &e, &f); err == nil;
   _, err = fmt.Scan(&a, &b, &c, &d, &e, &f) {
    y = (a*f-c*d)/(a*e-b*d)
    x = (c-b*y)/a
    fmt.Printf("%.3f %.3f\n", x,y)
  }
}

Python: import sys
import numpy as np
#np.set_printoptions(formatter={'float': '{: 0.3f}'.format}) #桁を揃える

line = sys.stdin.readlines()
#print(line)
for i in line:
    cnt = 0
    idx = 0
    a = np.array([0.0, 0.0, 0.0, 0.0])
    b = np.array([0.0, 0.0])
    for k in list(map(float, i.split(" "))):
        if cnt == 2:
            b[0] = k
            idx -= 1
        elif cnt == 5:
            b[1] = k
        else:
            a[idx] = k
        cnt += 1
        idx += 1
    #print(a, b)
    a = a.reshape(2, 2)
    x = np.linalg.solve(a, b)
    print('{0: .3f} {1: .3f}'.format(x[0], x[1]))

Python: inputs = []
while True:
  try:
    inputs.append(list(map(float,input().split())))
  except EOFError:
    break

for i in inputs:
  x=(i[2]*i[4]-i[1]*i[5])/(i[0]*i[4]-i[1]*i[3])
  y=(i[0]*i[5]-i[2]*i[3])/(i[0]*i[4]-i[1]*i[3])
  print("{0:.3f} {1:.3f}".format(x,y))

Python: while True:
    try:
        a, b, c, d, e, f = map(float, input().split())
        x = round((c * e - b * f) / (a * e - b * d), 3)
        y = round((a * f - c * d) / (a * e - b * d), 3)
        print('{0:.3f} {1:.3f}'.format(x + 0, y + 0))
    except:
        break

Python: #_*_ coding:utf-8 _*_
import sys


while True:
    vals = sys.stdin.readline()
    if(vals is  None or vals.strip() == '' ):
        break
    a,b,c,d,e,f=list( map(float,vals.strip().split()))
    temp = a * e - d * b
    x = (c * e - b * f) / temp + 0.0
    y = (c * d - a * f) / -temp + 0.0
    print('%.3f %.3f' % (x,y))

Python: try:
        while 1:
                a, b, c, d, e, f = map(float,raw_input().split())
                x = (c/b-f/e) / (a/b-d/e)
                y = (c/a-f/d) / (b/a-e/d)
                if x == 0:
                        x = 0
                if y == 0:
                        y = 0
                print("{:.3f} {:.3f}".format(x,y))
except:
        pass

Python: # usr/bin/python
# coding: utf-8
################################################################################
# Simultaneous Equation
# Write a program which solve a simultaneous equation:
#
# ax+by=c
# dx+ey=f
#
# The program should print x and y for given a, b, c, d, e and f (-1,000 ??? a,b,c,d,e,f ??? 1,000). You can suppose that given equation has a unique solution.
#
# Input
# The input consists of several data sets, 1 line for each data set. In a data set, there will be a,b,c,d,e,f separated by a single space. The input terminates with EOF.
#
# Output
# For each data set, print x and y separated by a single space. Print the solution to three places of decimals. Round off the solution to three decimal places.
#
# Sample Input 1
# 1 2 3 4 5 6
# 2 -1 -2 -1 -1 -5
# Output for the Sample Input 1
# -1.000 2.000
# 1.000 4.000
# Sample Input 2
# 2 -1 -3 1 -1 -3
# 2 -1 -3 -9 9 27
# Output for the Sample Input 2
# 0.000 3.000
# 0.000 3.000
#
################################################################################

import fileinput

if __name__ == "__main__":
    for line in fileinput.input():
        a = float(line.split(" ")[0])
        b = float(line.split(" ")[1])
        c = float(line.split(" ")[2])
        d = float(line.split(" ")[3])
        e = float(line.split(" ")[4])
        f = float(line.split(" ")[5])

        x = (e*c-b*f)/(a*e-b*d)
        y = (-d*c+a*f)/(a*e-b*d)
        print("{: .4f} {: .4f}".format(round(x,4),round(y,4)))
    pass

Python: # AOJ 0004 Simultaneous Equation
# Python3 2018.6.9 bal4u
 
EPS = 0.0001
while True:
    try:
        a = list(map(float, input().split()))
        dd = a[0]*a[4]-a[3]*a[1]
        d1 = a[2]*a[4]-a[5]*a[1]
        d2 = a[0]*a[5]-a[3]*a[2]
        print("{0:.3f} {1:.3f}".format(d1/dd+EPS, d2/dd+EPS))
    except EOFError:
        break

Python: import sys
for line in sys.stdin.readlines():
#for line in data.split('\n'):
	a,b,c,d,e,f = [int(s) for s in line.split()]
	x = (c*e-b*f) / (a*e-b*d)
	y = (c*d-a*f) / (b*d-a*e)
	if round(x,3) == 0.0:
		x = 0.0
	if round(y,3) == 0.0:
		y = 0.0
	print('{0:.3f} {1:.3f}'.format(x,y))

Python: try:
        while 1:
                a, b, c, d, e, f = map(int,input().split())
                x = (c/b-f/e) / (a/b-d/e)
                y = (c/a-f/d) / (b/a-e/d)
                if x == 0:
                        x = 0
                if y == 0:
                        y = 0
                print("{:.3f} {:.3f}".format(x,y))
except:
        pass

Python: while True:
  (a,b,c,d,e,f)  =  map(int,input().split())
  g = (a * e)  - (b * d)
  ans1= "{0:.3f}".format((( e * c) + ( -b * f)) / g + 0)
  ans2= "{0:.3f}".format(((-d * c) + (  a * f)) / g + 0)
  print (ans1,ans2)

Python: x = float(0.000)
y = float(0.000)

while 1:
	try:
		data = raw_input().split()

		a = float(data[0])
		b = float(data[1])
		c = float(data[2])
		d = float(data[3])
		e = float(data[4])
		f = float(data[5])

		# a*x + b*y = c
		# d*x + e*y = f

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

		print(float(format(x, '.3f')))
		print(float(format(y, '.3f')))

	except:
		break

Python: def main():
    def get_inputs():
        li = []
        try:
            while True:
                li.append(input())
        except EOFError:
            return li

    li = get_inputs()
    for str_num in li:
        tmp = str_num.split(" ")
        for i in range(len(tmp)):
            tmp[i] = int(tmp[i])
        a,b,c,d,e,f = tmp[0],tmp[1],tmp[2],tmp[3],tmp[4],tmp[5]
        x = (c*e - b*f) / (a*e - b*d)
        x = round(x, 3)
        y = (c*d - a*f) / (b*d - a*e)
        y = round(y, 3)
        print("{} {}".format(x,y))
    return None


if __name__ == '__main__':
    main()

Python: while True:
    try:
        a, b, c, d, e, f = map(int, raw_input().split()) 
        x = float(c*e - b*f)/(a*e - b*d)
        y = float(c*d - a*f)/(b*d - a*e)
        print ("%f %f" % (x, y))
    except:
        break

Python: from decimal import Decimal

def main():
    input_line = raw_input()
    x1 = int(input_line.split(' ')[0])
    y1 = int(input_line.split(' ')[1])
    p = int(input_line.split(' ')[2])
    x2 = int(input_line.split(' ')[3])
    y2 = int(input_line.split(' ')[4])
    q = int(input_line.split(' ')[5])
    multiplicand1, multiplicand2 = calculate1(x1, x2)
    after_y1, after_y2, after_p, after_q = calculate2(y1, y2, p, q, multiplicand1, multiplicand2)
    calculate3(after_y1, after_y2, after_p, after_q, x1, y1, p)
    
def calculate1(x1, x2):
    if (x1 >= 0 and x2 >= 0) or (x1 < 0 and x2 < 0):
        multiplicand1 = -x2
        multiplicand2 = x1
        return multiplicand1, multiplicand2
    else:
        multiplicand1 = abs(x2)
        multiplicand2 = abs(x1)
        return multiplicand1, multiplicand2
    
def calculate2(y1, y2, p, q, multiplicand1, multiplicand2):
    after_y1 = y1 * multiplicand1
    after_y2 = y2 * multiplicand2
    after_p = p * multiplicand1
    after_q = q * multiplicand2
    return after_y1, after_y2, after_p, after_q

def calculate3(after_y1, after_y2, after_p, after_q, x1, y1, p):
    y = Decimal(after_p + after_q) / Decimal(after_y1 + after_y2)
    x = Decimal(p - y1 * y) / Decimal(x1)
    print('%.4f %.4f' % (x, y))
    
if __name__ == '__main__':
    main()

Python: # coding: utf-8
# Here your code !

import sys
import math

r = sys.stdin.readlines()

r.pop(0)

n = [[float(i) for i in (j.split())] for j in r] #n is list of each lines
    
for l in n:
    y = (l[2]*l[3]-l[0]*l[5])/(l[1]*l[3]-l[0]*l[4])+0
    
    x = (l[2]*l[4]-l[5]*l[1])/(l[0]*l[4]-l[3]*l[1])+0
    
    print("{:.3f} {:.3f} ".format(x,y))