Find the missing terms in the arithmetic sequences. 7, ____ ,____ , _____ , 39
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an= a + (n - 1)d
a = first term
d = common difference
an = indicated term
Find the second, third and fourth of the given sequence.
7, ____ ,____ , _____ , 39
a=7, an=39, d=4d
39=7+4d
4d=32
d=8
Therefore, the missing terms are 15, 23, and 31 respectively.
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