document.write( "Question 648242: Find R:
\n" ); document.write( "1/R= 1/3 +1/4
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Algebra.Com's Answer #406600 by jim_thompson5910(35256)\"\" \"About 
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1/R= 1/3 +1/4\r
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\n" ); document.write( "\n" ); document.write( "1/R = 4/12 + 3/12\r
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\n" ); document.write( "\n" ); document.write( "1/R = 7/12\r
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\n" ); document.write( "\n" ); document.write( "R/1 = 12/7\r
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\n" ); document.write( "\n" ); document.write( "R = 12/7
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