Question

A soma de 1 número com sua terça parte 5. Qual é o número?

Answer 1

Oi!

            1                       3.1 + 1                        4

   x + ------- =  5  >>    -------------x = 5 >>    ----------- x = 5

            3                          3                              3 

x = 5:4/3  >    x = 5 . 3/4  >   x = 5.3            >   x =  15

                                                ----------                -----------

                                                    4                            4

Bons estudos!