document.write( "Question 266346: L=a+(n-1)d ;d=? \n" ); document.write( "
Algebra.Com's Answer #195687 by stanbon(75887)\"\" \"About 
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L=a+(n-1)d ;d=?
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\n" ); document.write( "L - a = (n-1)d
\n" ); document.write( "d = (L-a)/(n-1)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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