Verified Answer :

luana

\(a,a+1,a+2-\ three\ consecutive\ numbers\\\\ a+a+1+a+2=84\\\\ 3a+3=84\ \ \ | subtract\ 3\\\\ 3a=81\ \ \ \ | divide\ by\ 3\\\\ a=27\\\\ The\ smallest\ is\ 27.\)

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

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