document.write( "Question 1091923: The third term of an arithmetic sequence is 8 and the sixth term is 2. Find the 30th term \n" ); document.write( "
Algebra.Com's Answer #706417 by Fombitz(32388)\"\" \"About 
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\"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\"
\n" ); document.write( "So,
\n" ); document.write( "\"a%5B3%5D=a%5B1%5D%2B%283-1%29d\"
\n" ); document.write( "1.\"8=a%5B1%5D%2B2d\"
\n" ); document.write( "and
\n" ); document.write( "\"a%5B6%5D=a%5B1%5D%2B%286-1%29d\"
\n" ); document.write( "2.\"2=a%5B1%5D%2B5d\"
\n" ); document.write( "Subtract 1 from 2,
\n" ); document.write( "\"a%5B1%5D%2B5d-a%5B1%5D-2d=2-8\"
\n" ); document.write( "\"3d=-6\"
\n" ); document.write( "\"d=-2\"
\n" ); document.write( "Now use either equation to solve for \"a%5B1%5D\".
\n" ); document.write( "Then solve for,
\n" ); document.write( "\"a%5B30%5D=a%5B1%5D%2B%2830-1%29%28-2%29\"
\n" ); document.write( "\"a%5B30%5D=a%5B1%5D%2B29%28-2%29\"
\n" ); document.write( "\"a%5B30%5D=a%5B1%5D-58\"\r
\n" ); document.write( "\n" ); document.write( "
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