Question

AFLATI doua numere naturale,stiind ca: a) au suma 984,catul 3 si restul 4; b) au differenta 725,catul 9 si restul 5.

Answer 1

a)not. nr. a,b
a+b= 984
a:b=3 rest 4
a=b*3+4
3b+4+b=984/-4
4b=980/:4
b=245
984-245=739(a)

Answer 2

a)
a+b=984
a:b= 3 rest 4 → a=3b+4
-------------------
3b+4+b=984
4b=980
b=980:4=245
a=245•3+4=735+4=738

b)
a-b=725
a:b=9 rest 5 → a=9b+5
-------------------
9b+5-b=725
8b=720
b=720:8=90
a=90•9+5=815