Розвяжіть рівняння 1) 6х+8х-7х=714    2) 23х-19х+5х=1827   3)11х-6х+17=2042  4) 5х+3х-47=6401

1)6х+8х-7х=714                                           3)11х-6х+17=2042    7х=714                                                        5х=2042-17     х=714:7                                                      5х=2025     х=102                                                          х=2025:5                                                                               х=405   2)23х-19х+5х=1827                                       4)5х+3х-47=6401    9х=1827                                                        8х=6401+47     х=1827:9                                                      8х=6448     х=203                                                           х=6448:8                                                                         х=806