Question

Media aritmetica a 5 numere consecutive este 9. afla numerele.

Answer 1

(x+x+1+x+2+x+3+x+4):5=9
(x+x+1+x+2+x+3+x+4)=45
5x+10=45
5x=35
x=7

Answer 2

$(a+a+1+a+2+a+3+a+4):5=9 \\ \\ a+a+1+a+2+a+3+a+4=45 \\ \\ 5a+10=45 \\ \\ 5a=35 \\ \\ \boxed{a=7} \\ \\ a+1=7+1=8 \\ \\ a+2=7+2=9 \\ \\ a+3=7+3=10 \\ \\ a+4=7+4=11 \\ \\\boxed{ R:{7,8,9,10,11}}$