a+b=174
b= a:2 +21
a /--------/---------/
b /--------/ +21
total 174
3 segmente+21=174
3 segmente=174-21
3segmente=153
1 segment=153:3=51
Primul numar, a, are 2 segmente , adica 51x2=102
Al doilea numar, b, are 1 segment+21, adica 51+21=72
a=102
b=72