Răspuns :
a+b=98
a-b=82=>a=82+b( introducem in prima relatie)
(82+b)+b=98=>2b=16=>b=8=>a=82+8=90
Bafta
a-b=82=>a=82+b( introducem in prima relatie)
(82+b)+b=98=>2b=16=>b=8=>a=82+8=90
Bafta
I. |___________|
II. |__|.......+82.......| => I. = (98+82):2 = 180:2 = 90
II. = 98 - 90 = 8
II. |__|.......+82.......| => I. = (98+82):2 = 180:2 = 90
II. = 98 - 90 = 8