Помогите решить 1/9х+7/18х-11/27х=2 1/2 помогите пожалуйста

1/9х+7/18х-11/27х=2 1/2                        х-7/3=-2                                                 6/54х+21/54х-22/54х=5/2                       х= -2+7/35/54х=5/2                                                х=-6/3+7/354х=2                                                      х=1/3                                                    х=2/54х=1/27