Question

Quanto eh 9x+9+3=15?

Answer 1

olá, vamos resolver>>   9x + 9 + 3 = 15

                                       9x = 15 - 9 - 3       <<  isola - se o x

                                       9x = 15 - 12

                                       9x = 3

                                        x =   3                                

                                            _____     

                                               9

simplificando por 3 >>    x =    3 : 3             1

                                           -----------  =    --------

                                               9: 3               3

bons estudos!