document.write( "Question 156882: Solve for the specified variable.
\n" ); document.write( "S =a/1-r for r
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Algebra.Com's Answer #115670 by checkley77(12844)\"\" \"About 
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S =(a/1)-r
\n" ); document.write( "r=-S+a/1 answer.
\n" ); document.write( "OR:
\n" ); document.write( "S=a/(1-r)
\n" ); document.write( "S(1-r)=a
\n" ); document.write( "S-Sr=a
\n" ); document.write( "-Sr=a-S
\n" ); document.write( "r=(a-S)/-S answer.
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