 EgorUmelii 
                                                08.04.2020 05:04
                                                
                                                EgorUmelii 
                                                08.04.2020 05:04
                                             LollyPopsi 
                                                08.04.2020 05:03
                                                
                                                LollyPopsi 
                                                08.04.2020 05:03
                                             Imfind 
                                                08.04.2020 05:02
                                                
                                                Imfind 
                                                08.04.2020 05:02
                                             AlinaRaytman 
                                                08.04.2020 05:00
                                                
                                                AlinaRaytman 
                                                08.04.2020 05:00
                                             pavlova62 
                                                08.04.2020 05:00
                                                
                                                pavlova62 
                                                08.04.2020 05:00
                                             Ученикdsgfgchugffwgc 
                                                08.04.2020 05:00
                                                
                                                Ученикdsgfgchugffwgc 
                                                08.04.2020 05:00
                                             salavatshakiro 
                                                08.04.2020 04:59
                                                
                                                salavatshakiro 
                                                08.04.2020 04:59
                                             injugulshat 
                                                08.04.2020 04:59
                                                
                                                injugulshat 
                                                08.04.2020 04:59
                                             АлиночкаБурова 
                                                08.04.2020 04:59
                                                
                                                АлиночкаБурова 
                                                08.04.2020 04:59
                                            
27 : (31 3/7 - 2 11/14х) = 1 1/8
31 3/7 - 2 11/14х = 27 : 1 1/8
31 3/7 - 2 11/14х = 27 : 9/8
31 3/7 - 2 11/14х = 27 · 8/9
31 3/7 - 2 11/14х = 3 · 8
31 3/7 - 2 11/14х = 24
2 11/14х = 31 3/7 - 24
2 11/14х = 7 3/7
х = 7 3/7 : 2 11/14
х = 52/7 : 39/14
х = 52/7 · 14/39
х = (4·2)/(1·3)
х = 8/3
х = 2 целых 2/3
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Проверка: 27 : (31 3/7 - 39/14 · 8/3) = 1 1/8
27 : (31 3/7 - 52/7) = 1 1/8
27 : (31 3/7 - 7 3/7) = 1 1/8
27 : 24 = 1 1/8
27/24 = 9/8 = 1 1/8