Răspuns :
B=a×3 sau a=b:3
B-a=102
A×3-a=102
2a=102
A=102:2
A=51
B=51×3
B=153
Sper ca te-am ajutat!!!
a-b=102
a=b:3
(b:3)-b=108
2b:3=108
2b=108×3
2×b=324
b=324:2
b=162
a-162=102
a=162+102
a=264
a=b:3
(b:3)-b=108
2b:3=108
2b=108×3
2×b=324
b=324:2
b=162
a-162=102
a=162+102
a=264