Answer
$-7,-3,1,5,9,13$
Work Step by Step
Formula to calculate the nth term of an arithmetic sequence is: $a_n=a_1+d(n-1)$
Here, $a_1: $ First term and $d=$ common difference
$a_1=-7+4(1-1)=-7$; $a_2=-7+4(2-1)=-3$;$a_3=-7+4(3-1)=1$;$a_4=-7+4(4-1)=5$;
$a_5=-7+4(5-1)=9$;$a_6=-7+4(6-1)=13$
Hence, the first six terms are: $-7,-3,1,5,9,13$
