Find the term of an arithmetic sequence Algebra I

Find the explicit term of the arithmetic sequence which first terms are the following.

-4, 2, 8, 14, 20, 26, 32, ...

a_n=6n-10

a_n=2n-6

a_n=3n-7

a_n=n-5

-3, 1, 5, 9, 13, 17, 21, ...

a_n=4n-7

a_n=4n+3

a_n=-3n-3

a_n=3n-6

3, 10, 17, 24, 31, 38,...

a_n=7n-4

a_n=5n-2

a_n=3n+7

a_n=-4n+7

10, 7 ,4 ,1 ,-2 ,...

a_n=-3n+13

a_n=3n+7

a_n=4n+1

a_n=5n-2

101, 97, 93, 89, 85, 81,...

a_n=-4n+105

a_n=2n+99

a_n=4n+97

a_n=97n+4

-17, -14, -11, -8, -5, -2,...

a_n=3n-20

a_n=-3n-14

a_n=-6n+1

a_n=4n-18

21, 14, 7, 0, -7, ...

a_n=-7n+28

a_n=7n

a_n=7n+14

a_n=-14n+7