Răspuns :
a + b = 47,549
a - b = 19,576
le adunam
2a / = 67,125
a = 67,125 : 2
a = 33,5625
b = 47,549 - 33,5625
b = 13,9865
a - b = 19,576
le adunam
2a / = 67,125
a = 67,125 : 2
a = 33,5625
b = 47,549 - 33,5625
b = 13,9865