Question

Cine ma poate ajuta si pe mine ?:/
x+(x+1)+(x+2)....+(x+100)=5151....raspunsul trebuie sa fie 1...mie nu imi da

Answer 1

1+2+3+.....+100=(1+100)*100:2=101*50=5050
x+x+x+....+x+x(de 101 ori)+5050=5151
101x=5151-5050⇒101x=101⇒x=101:101=1
Raspuns:x=1

Answer 2

[x+(x+100)]*101/2= 5151

(x+x+100)*101=5151*2

(2x+100)*101= 10302

2x+100=10302 :101

2x+100= 102

2x=102-100

2x=2

x=1