Răspuns :
a + b = 2582
a - b = 974
le adunam
2a = 3556
a = 3556 : 2
a = 1778
b = 1778 - 974
b = 804
a - b = 974
le adunam
2a = 3556
a = 3556 : 2
a = 1778
b = 1778 - 974
b = 804
a+b=2582
a-b=974=>a=b+974
\-----\(b)
\-----\+974(a)
2582-974=1608(reprezinta 2P)
1608:2=804(b)
804+974=1778(a)
a-b=974=>a=b+974
\-----\(b)
\-----\+974(a)
2582-974=1608(reprezinta 2P)
1608:2=804(b)
804+974=1778(a)