Решите уравнения: а) 11х-4х-49=49 б) 48:(2х+4)=4

7х = 49 + 49                    24 х + 12 = 4

7х = 98                            24 х = 4 - 12х = 98 : 7 = 14                 24 х = -8

                                         х = -8 : 24

                                        х = -  8                                                                               

                                                 24