Решите уравнение г 38+b*12=840 д 14p-30=630

Question

Решите уравнение
г 38+b*12=840
д 14p-30=630

Answer 1

г) 12в=840-38                                            д) 14р=630+30

12в=802                                                          14р=660

в=66,83                                                              р=47,143