document.write( "Question 1096298: Find an for the arithmetic sequence with a4 = 12 and the common difference is 2. \n" ); document.write( "
Algebra.Com's Answer #710741 by ikleyn(52794)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "a3 = 12 - 2 = 10.\r\n" );
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document.write( "a2 = 10 - 2 =  8.\r\n" );
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document.write( "a1 =  8 - 2 =  6.\r\n" );
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document.write( "So, your progression starts from 6 and each next term is 2 units more than the current term.\r\n" );
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\n" ); document.write( "There is a bunch of introductory lessons on arithmetic progressions in this site:\r
\n" ); document.write( "\n" ); document.write( "    - Arithmetic progressions\r
\n" ); document.write( "\n" ); document.write( "    - The proofs of the formulas for arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Problems on arithmetic progressions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on arithmetic progressions\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on arithmetic progressions \r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Arithmetic progressions\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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