Question

Найди уравнения,которые решены неправильно,и реши их.
768-х=700                                     х+10=190                                  х-380=100
                                                                                                      х=380-100
                                                                                                      х=280


                                                     х=190+10
                                                     х=200 

х=768-700
х=68

Answer 1

2 и 3 неправельный 

во 2 надо -
а в 3 надо +