document.write( "Question 399540: in an arithmetic sequence, a3=-8 and a17=48\r
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Algebra.Com's Answer #282924 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "    (8-2d) + 16d = 48
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document.write( "         14d = 40
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document.write( "           d = 40/14 = 20/7  and \r
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