Răspunsuri

Cel mai inteligent răspuns!
2014-10-08T22:40:20+03:00
X + 5 = ± 11
Avem ecuatiile:

a) x + 5 = 11 =>   x = 11 - 5  =>   x = 6

b) x + 5 = -11 =>  x = -11 - 5  =>   x = -16

1 5 1