Question

Решите пж уравнение:
59=81-х.

Answer 1

81-х=59
х=81-59
х=22
Проверка:
81-22=59

Answer 2

x=81-59                                                                                                                  x=22                                                                                                                        59=81-22                                                                                                                  59=59 верно