Răspunsuri

2014-03-19T16:03:43+02:00
X-primul nr
x+1-al II nr
x+2-al treilea nr.
Din prob⇒x+(x+1)+(x+2)-(x+2-x)=40⇒x+x+1+x+2-2=40⇒3x=40-1⇒3x=39⇒
x=39/3⇒x=13⇒
I nr.13
II.nr.14
III ne.15
2 4 2