document.write( "Question 1039880: Which term of the arithmetic sequence is -18 , given a1=7 and a2=2? \n" ); document.write( "
Algebra.Com's Answer #654632 by Aldorozos(172)\"\" \"About 
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\n" ); document.write( "http://www.regentsprep.org/regents/math/algtrig/atp2/arithseq.htm
\n" ); document.write( "Your first term is 7\r
\n" ); document.write( "\n" ); document.write( "The second term is
\n" ); document.write( "2=7+(2-1)r
\n" ); document.write( "r=-5\r
\n" ); document.write( "\n" ); document.write( "-18= 7+ (n-1)(-5)
\n" ); document.write( "N=6
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