document.write( "Question 595945: P=(R-E)/R
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Algebra.Com's Answer #377401 by scott8148(6628)\"\" \"About 
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P=(R-E)/R\r
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\n" ); document.write( "\n" ); document.write( "multiplying by R ___ PR = R - E\r
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\n" ); document.write( "\n" ); document.write( "subtracting R ___ PR - R = -E\r
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\n" ); document.write( "\n" ); document.write( "factoring ___ R(P - 1) = -E\r
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\n" ); document.write( "\n" ); document.write( "dividing by P-1 ___ R = -E / (P - 1) ___ R = E / (1 - P)
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