Find the first four terms of the sequence given by the following,

Question

A_n =63+(n-1)x7, n=1,2,3

Answer 1

a1=63

a2=70

a3=77

a4=84

63,70,77,84,91,98,105,...

it's an arithmetic sequence with common difference = d = 7

each term 7 more than the previous term