Answer:
second number= 17
Step-by-step explanation:
first number=a
second number=b
third number = c
we have:
a+b+c=51 equation 1
a=2n+1 equation 2
b=2n+3 equation 3
c=2n+5 equation 4
using equations 2, 3 and 4 in equation 1, we have
2n+1+2n+3+2n+5=51
6n+9=51
6n=51-9
6n=42
n=42/6
n=7
so we have
a=(2*7)+1 =15 first number
b=(2*7)+3 =17 second number
c= (2*7)+5 =19 third number
