Answer:
There is a formula: a_n = d + a_n-1
in general for the nth term: a_n = (n - 1) *d + a_1
Step-by-step explanation:
in general for the nth term: a_n = (n - 1) *d + a_1
where a_1 is the first term in the sequence.
a_n is the nth term in the sequence
d = common difference
where d = difference a_n - a_n-1
for example in the arithmetic sequence: 1, 2, 3, 4, 5, 6, 7
the common difference is 1
a_1 = 1
and a_n = n for is an integer >= 1
