document.write( "Question 962771: Danny and Josh are going to go help paint Josh’s neighbor’s fence. Josh painted the fence by himself two years ago. Four years ago, Danny painted the same fence and did it 9 hours faster than Josh. Together, Danny and Josh finished painting the fence in just 7 hours. Show how long it takes for Danny and Josh to paint the fence if they were each doing it by themselves. \n" ); document.write( "
Algebra.Com's Answer #588226 by josgarithmetic(39630)\"\" \"About 
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Let x be the time for Josh alone to paint the fence.\r
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\n" ); document.write( "\n" ); document.write( "PERSON__________RATE
\n" ); document.write( "Josh____________1/x
\n" ); document.write( "Danny___________1/(x-9)
\n" ); document.write( "Josh&Danny______1/7\r
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\n" ); document.write( "\n" ); document.write( "The rate of both people working together will be the sum of the individual rates.\r
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\n" ); document.write( "\n" ); document.write( "\"1%2Fx%2B1%2F%28x-9%29=1%2F7\"\r
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\n" ); document.write( "\n" ); document.write( "Use ordinary fraction skills. LCD is \"7x%28x-9%29\".
\n" ); document.write( "Multiply both members by \"7x%28x-9%29\" and simplify before solving for x.
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