помогите номер 4 и 5 пожалуйста

x - 634 = 1400
x = 1400 + 634                                                                   1400
                                                                                          + 634
                                                                                          -------
                                                                                          2034
x = 2034

675 + x = 5000                                                                     11
x = 5000 - 675                                                                    5000
                                                                                           - 675
                                                                                           -------
                                                                                            4325
x = 4325
                                               №5
P = 13·2 + 5·2
P = 36 см

S = 13·5
S = 65 см²
Ответ: 36 см;65 см²

Если что-то будет не понятно - спрашивай.

хорошо

СПАСИБО БОЛЬШОЕ!!!!!!!

Незачто :3
Рад помочь.