document.write( "Question 43382: Solve for R:\r
\n" ); document.write( "\n" ); document.write( "1/R = 1/A + 1/B\r
\n" ); document.write( "\n" ); document.write( "I thought I had this worked out, but was not sure I could do what I did. I multipled both sides of the equation by 1/1 which allowed me to end up with R = A + B. Can this be correct? What did I do wrong?\r
\n" ); document.write( "\n" ); document.write( "John
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Algebra.Com's Answer #28394 by psbhowmick(878)\"\" \"About 
You can put this solution on YOUR website!
\"1%2FR+=+1%2FA+%2B+1%2FB\"
\n" ); document.write( "or \"1%2FR+=+%28A+%2B+B%29%2F%28A%2AB%29\"
\n" ); document.write( "or \"R+=+A%2AB%2F%28A+%2B+B%29\"\r
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\n" ); document.write( "\n" ); document.write( "So you are wrong!\r
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\n" ); document.write( "\n" ); document.write( "You must note that \"1%2FA+%2B+1%2FB\" and \"1%2F%28A+%2B+B%29\" are not the same. Here you committed the mistake.
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