Răspuns :
a-b = 137
a:b= 6 rest 12
a= 6b+12
6b+12-b= 137
5b +12= 137
5b= 137-12
5b= 125
b=125:5
b=25
a= 6*25+12= 150+12=162
a:b= 6 rest 12
a= 6b+12
6b+12-b= 137
5b +12= 137
5b= 137-12
5b= 125
b=125:5
b=25
a= 6*25+12= 150+12=162
Fie a,b E N.
a-primul numar
b-al doilea numar
E-apartine
N-numar
a-b=137
a:b=6 rest 12
a=bx6+12
bx6+12-b=137
bx5+12=137
bx5=137-12
bx5=125
b=125:5
b=25
a=25x6+12
a=150+12
a=162
proba:162-25=137(A)
a-primul numar
b-al doilea numar
E-apartine
N-numar
a-b=137
a:b=6 rest 12
a=bx6+12
bx6+12-b=137
bx5+12=137
bx5=137-12
bx5=125
b=125:5
b=25
a=25x6+12
a=150+12
a=162
proba:162-25=137(A)