Реши уравнения х-(31+45)=19 (62-37)+а=90

X-76=19 Х=76+19 Х=95 25+а=90 а=90-25 а=65

х-(31+45)=19 х-76=19                                                                                                                               х=76+19                                                                                                                               х=95(62-37)+а=90                                                                                  25+а=90а=90-25а=65