document.write( "Question 652980: S=n/2(a+1)solving for a \n" ); document.write( "
Algebra.Com's Answer #408182 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Depends. Do you mean:\r
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\n" ); document.write( "\n" ); document.write( "Re-post, using sufficient parentheses to make it clear which parts of the RHS are in the numerator and which are in the denominator.\r
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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