The 8th term of an arithmetic sequence is 12 and 12th term is 8 find the first term
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8th term = 12 = a + (8-1)d = a + 7d. This is equation 1. 12th term = 8 = a + (12-1)d = a + 11d.
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8th term = 12 = a + (8-1)d = a + 7d. This is equation 1. 12th term = 8 = a + (12-1)d = a + 11d.
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