document.write( "Question 1061006: Write in terms of a: S=n(a+L)/2 \n" ); document.write( "
Algebra.Com's Answer #675854 by Boreal(15235)\"\" \"About 
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S=n(a+L)/2
\n" ); document.write( "Isolate the a.
\n" ); document.write( "2s+n(a+L)
\n" ); document.write( "divide by n both sides
\n" ); document.write( "(2s/n)=a+L
\n" ); document.write( "subtract L from both sides
\n" ); document.write( "(2s/n)-L=a
\n" ); document.write( "
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