document.write( "Question 716630: Solve for x:\r
\n" ); document.write( "\n" ); document.write( "R=1/x+ 1/r\r
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\n" ); document.write( "\n" ); document.write( "Tony
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Algebra.Com's Answer #439922 by lynnlo(4176)\"\" \"About 
You can put this solution on YOUR website!
R=1/x+1/r
\n" ); document.write( "R-1/X-1/R
\n" ); document.write( "X=R/(R-1)(R+1)
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