document.write( "Question 1207838: Given (1/x) = (1/a) + (1/b),\r
\n" ); document.write( "\n" ); document.write( "1. Solve to show x = ab/(a + b), provided that a + b does no equal 0.\r
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Algebra.Com's Answer #845964 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Not much outside of just the algebra steps solving for one variable in an equation.\r
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\n" ); document.write( "\n" ); document.write( "\"1%2Fx=%281%2Fa%2B1%2Fb%29\"\r
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\n" ); document.write( "\n" ); document.write( "on right side, simplest common denominator \"ab\".\r
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\n" ); document.write( "\n" ); document.write( "\"1%2Fx=b%2F%28ab%29%2Ba%2F%28ab%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"1%2Fx=%28b%2Ba%29%2F%28ab%29\"\r
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\n" ); document.write( "\n" ); document.write( "and just recognize, the reciprocal of each side is what you are looking for.\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28ab%29%2F%28b%2Ba%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28ab%29%2F%28a%2Bb%29\"----------result.\r
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\n" ); document.write( "\n" ); document.write( "Obviously if \"a=-b\" then, not allowed for a equal to negative b.
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