Answer
$-20,-17,-14,-11,-8$
Work Step by Step
The general term $a_n$ of an arithmetic sequence is given by $a_n = a_1 + (n-1)d$ where $a_1$ is the first term and $d$ is the common difference.
We plug in $n = 1, 2, 3, 4, 5$ to find the first five terms of the arithmetic sequence
$a_1 = -20 + (1-1)\cdot3 = -20+0\cdot3 = -20$
$a_2 = -20 + (2-1)\cdot3 = -20+1\cdot3= -17$
$a_3 = -20 + (3-1)\cdot3 = -20+2\cdot3= -14$
$a_4 = -20 + (4-1)\cdot3 = -20+3\cdot3= -11$
$a_5 = -20 + (5-1)\cdot3 = -20+4\cdot3= -8$