A+B=1165. B=A253 VA ROG METODA ALGEBRICA !!!!!DAU COROANA !!!!

Răspuns :

a+b=1165
b=a-253==>a=b+253

b+253+b=1165
2b+253=1165
2b=1165-253
2b=912
b=912:2
b=456

a=456+253
a=709


Sper ca te am ajutat !