Question

suma a cinci numere consecutive este 105 determina numerele

Answer 1

a+a+1+a+2+a+3+a+4=105
5a+10=105
5a=105-10
5a=95
a=95:5
a=19
b=19+1
b=20
c=19+2
c=21
d=19+3
d=22
e=19+4
e=23

Answer 2

$\text{Notam numerele astfel : } \\ \\ x \\ x+1 \\ x+2 \\ x+3 \\ x+4 \\ --- \\ 5x + 10 = 105 \\ 5x=105-10 \\ 5x=95 /:5 \\ x=19 \\ \\ \boxed{\text{Deci numerele sunt : 19,20,21,22,23}}$