Question

1+2+3+...+100/3+6+9+...+300=x/6
Aflati x
help pls​

Answer 1

1+2+3+...+100/3+6+9+...+300=x/6

1+2+3+...+100=n(n+1)/2=100•101/2=50•101=5050

3+6+9+...+300=3(1+2+3+...+100)=3•5050=15 150

5050/15 150=x/6=>1/3=x/6=>3x=6=>x=2

Answer 2

Răspuns:

Bună, sper ca te am ajutat!!!!