Răspuns :
a+b=1677 a-b=71; a=71+b ; 71+b+b=1677; 71+2b=1677; 2b=1677-71; 2b=1606; b=1606/2; b=803 => a=1677-803; a=874
a+b=1677
a-b=71=>a=b+71
1677-71=1606 (2a __
1606:2=803 (b)
803+71=874
V:874+
803
------
1677
874-803=71
SPER CA TE-AM AJUTAT
a-b=71=>a=b+71
1677-71=1606 (2a __
1606:2=803 (b)
803+71=874
V:874+
803
------
1677
874-803=71
SPER CA TE-AM AJUTAT