 XxXKotikXxX 
                                                24.04.2020 20:47
                                                
                                                XxXKotikXxX 
                                                24.04.2020 20:47
                                             azalhanovahalid 
                                                24.04.2020 20:47
                                                
                                                azalhanovahalid 
                                                24.04.2020 20:47
                                             sobennikovaox 
                                                24.04.2020 20:47
                                                
                                                sobennikovaox 
                                                24.04.2020 20:47
                                             vyachik2000 
                                                24.04.2020 20:47
                                                
                                                vyachik2000 
                                                24.04.2020 20:47
                                             Vetaliks 
                                                24.04.2020 20:47
                                                
                                                Vetaliks 
                                                24.04.2020 20:47
                                             MashaZhukova12345 
                                                24.04.2020 20:46
                                                
                                                MashaZhukova12345 
                                                24.04.2020 20:46
                                             SASA7609508 
                                                23.12.2020 14:57
                                                
                                                SASA7609508 
                                                23.12.2020 14:57
                                             ga77 
                                                23.12.2020 14:58
                                                
                                                ga77 
                                                23.12.2020 14:58
                                            
75a+125b=25(3a+5b).
ab+ac-2ad=a(b+c-2d).
7ab+a-2ad=a(7b+1-2d).
75a+125b=25(3a+5b)
ab+ac-2ab=a(b+c-2b)
7ab+a-2ad=a(7b+1-2b)