document.write( "Question 944507: What is the sum of the first 10 terms of the arithmetic series {1, 4, 7, 10 ...}
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Algebra.Com's Answer #576154 by Fombitz(32388) $\"\"$ $\"About$

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The common difference is $\"3\"$ .
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\n" ); document.write( " $\"1=x%2B3%281-1%29\"$
\n" ); document.write( " $\"x=1\"$
\n" ); document.write( "and the series is,
\n" ); document.write( " $\"a%5Bn%5D=1%2B3%28n-1%29\"$
\n" ); document.write( " $\"a%5Bn%5D=1%2B3n-3\"$
\n" ); document.write( " $\"a%5Bn%5D=3n-2\"$
\n" ); document.write( "and
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