Răspunsuri

2014-02-11T18:00:20+02:00
A-b=87
a:b=5 r 15

a=5b+15
5b+15-b=87
4b=87-15
4b=72
b=18

a-18=87
a=87+18
a=105
a-b=87
a-b=87. a:b=5 r 15=>a=5b+15;5b+15-b=87. 4b+15=87=>4b=72 =>b=18,iar a=87+18=105
domnisoara, ia fa calculul. da 1 rest...