Answer :
[tex]a,a+1,a+2-\ three\ consecutive\ numbers\\\\
a+a+1+a+2=84\\\\
3a+3=84\ \ \ | subtract\ 3\\\\
3a=81\ \ \ \ | divide\ by\ 3\\\\
a=27\\\\
The\ smallest\ is\ 27.[/tex]
x= first number
x+1=second number
x+2 = third number
add and equal to 84
3x+3=84
3x= 81
x=27
x+1=28
x+2=29
