x - /............./
y=x+1 /............../+1
z=x+2 /............./+2
t=x+3 /............./+3
v=x+4 /.........../+4
x+y+z+t+v=260
5/......./+1+2+3+4=260
5/........../=260-10
5/.............../=250
/................/=250:5
/................./=50
x=50 , y=x+1=51 z=x+2=52; t=x+3=53 , v=x+4=54
verificare
x+y+z+t+v=260
50+51+52+53+54=260
260=260
a doua varianta de rezolvare
x=primul nr
x+1=al 2-lea nr
x+2=al 3-lea nr
x+3=al 4-lea nr
x+4=al 5-lea nr
x+(x+1)+(x+2)+(x+3)+(x+4)=260
5x+10=260
5x=260-10
5x=250
x=50 , y=x+1=51 z=x+2=52; t=x+3=53 , v=x+4=54
