document.write( "Question 826541: Find the sum: (-2)+0+2+...+76.\r
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Algebra.Com's Answer #500644 by tommyt3rd(5050)\"\" \"About 
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\"a%5Bn%5D=76\"
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\n" ); document.write( "\n" ); document.write( "solving the arithmetic equation \"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\" for n yields \r
\n" ); document.write( "\n" ); document.write( "\"%0D%0An=%28a%5Bn%5D-a%5B1%5D%29%2Fd%2B1+=+%2876--2%29%2F2%2B1=40%0D%0A\"\r
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