Question

Determine a e b reais tal que (5a,8b+2)=(25,10-b)

Answer 1

               
                          (5a,8b+2)=(25,10-b)
                                                   
                           5a = 25 ---> a = 5

                          8b + 2 = 10 - b                          
                          8b + b = 10 - 2                                 
                                9b =  8                              
                                  b =  8/9