document.write( "Question 843224: The 1st term of an arithmetic sequence is 6 times the 5th term. The sum of the 2nd and 8th terms is 8. Find the 20th term of this sequence? \n" ); document.write( "
Algebra.Com's Answer #516259 by richwmiller(17219)\"\" \"About 
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a =6(a + 4d)
\n" ); document.write( "a =6a + 24d\r
\n" ); document.write( "\n" ); document.write( "a2 = a + d
\n" ); document.write( "a8 = a + 7d
\n" ); document.write( "8=2a+8d
\n" ); document.write( "4=a+4d
\n" ); document.write( "24=6a+24d
\n" ); document.write( "a =6a + 24d
\n" ); document.write( "a=24
\n" ); document.write( "24=144+24d
\n" ); document.write( "-120=24d
\n" ); document.write( "-5=d
\n" ); document.write( "an = a + (n - 1)d
\n" ); document.write( "a20 = 24 -5(19)
\n" ); document.write( "a20=-71
\n" ); document.write( "
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