ришы уравнения собяснениям . х+45=90+7.     56+х=50+20.        х+26=60+4.

  • х+45=90+7                     56+х=50+20                                х+26=60+4
    х+45=97                          56+х=70                                       х+26=64
    х=97-45                           х=70-56                                         х=64-26
    х=52                                х=14                                                х=38
  • х+45=90+7                     56+х=50+20                                х+26=60+4
    х+45=97                          56+х=70                                       х+26=64
    х=97-45                           х=70-56                                         х=64-26
    х=52                                х=14                                                х=38