find the 7th term from the end of AP 7,11,15,......,107
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a = 107
d= 11 - 15 = -4
n = 7
an = a + (n-1)d
107 + (7-1) (-4)
= 107 -24
= 83
the 7th term = 83
d= 11 - 15 = -4
n = 7
an = a + (n-1)d
107 + (7-1) (-4)
= 107 -24
= 83
the 7th term = 83
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0
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