document.write( "Question 1131527: The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?\r
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Algebra.Com's Answer #748244 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "There are 14 gaps of equal size between the first and fifteenth terms of arithmetic sequence.\r\n" );
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document.write( "So, each gap, which is the common difference, is   =  = 4.    ANSWER\r\n" );
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