document.write( "Question 1085358: 61st term of the sequence if a↓4=8 and a↓21=26?
\n" ); document.write( "73rd term of the sequence if a↓1=18 and a↓18=52?
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Algebra.Com's Answer #699869 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
I'll do one, you do the next.
\n" ); document.write( "1.\"a%5B4%5D=a%5B1%5D%2B%284-1%29d=a%5B1%5D%2B3d=8\"
\n" ); document.write( "2.\"a%5B21%5D=a%5B1%5D%2B%2821-1%29d=a%5B1%5D%2B20d=26\"
\n" ); document.write( "Subtracting,
\n" ); document.write( "\"a%5B1%5D%2B20d-a%5B1%5D-3d=26-8\"
\n" ); document.write( "\"17d=18\"
\n" ); document.write( "\"d=18%2F17\"
\n" ); document.write( "and
\n" ); document.write( "\"a%5B1%5D%2B3%2818%2F17%29=8\"
\n" ); document.write( "\"a%5B1%5D=136%2F17-54%2F17\"
\n" ); document.write( "\"a%5B1%5D=82%2F17\"
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\n" ); document.write( "\n" ); document.write( "So then,
\n" ); document.write( "\"a%5B61%5D=82%2F17%2B%2861-1%29%2818%2F17%29\"
\n" ); document.write( "\"a%5B61%5D=82%2F17%2B1080%2F17\"
\n" ); document.write( "\"a%5B61%5D=1162%2F17\"
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\n" ); document.write( "Do the next one the same way.\r
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