# Find the next three terms of the arithmetic sequence −13,−11,−9,−7,...

Find the next three terms of the arithmetic sequence −13,−11,−9,−7,...
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Jimena Torres
the terms in an arithmetic sequence are
a,a+d,a+2d,......,a+(n−1)d
where d is the common difference
here d=−11−(−13)=2
to obtain a term from the previous term add on d
$⇒{a}_{5}=-7+2=-5$
$⇒{a}_{6}=-5+2=-3$
$⇒{a}_{7}=-3+2=-1$