document.write( "Question 1079451: the first term of an arithmetic sequence is -5, and the twelfth term is 17 find the common difference \n" ); document.write( "

Algebra.Com's Answer #693761 by ikleyn(52787) $\"\"$ $\"About$

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document.write( " = -5,\r\n" );
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document.write( " =  + 11*d = -5 + 11*d.\r\n" );
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document.write( "So, you have an equation\r\n" );
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document.write( "-5 + 11d = 17.\r\n" );
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document.write( "Solve it for d, the common difference.\r\n" );
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\n" ); document.write( "\n" ); document.write( "There is a bunch of 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( "    - One characteristic property of 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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