Question

Suma a doua nr este 105. Aflati numerele , daca prin impartirea lor, se obtine catul 7 si restul 9.

Answer 1

a:b=7 rest 9, a=7b+9

a+b=105
7b+9+b=105, 7b+b=105-9, 8b=96, b=96:8, b=12
a+12=105, a=105-12, a=93

a=93, b=12

verificare: 93+12=105, 93:12=7 rest9