document.write( "Question 1154714: Howard and Edward, working together, can complete a job in 12 hours. Edward requires 18 hours to do this job alone. Howard and Edward start the job. After they worked for 4 hours, Howard left the job. How many hours will Edward require to finish the job working alone? \n" ); document.write( "
Algebra.Com's Answer #853812 by josgarithmetic(39736)\"\" \"About 
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h, time for Howard alone to do one job
\n" ); document.write( "18, time for Edward to do one job\r
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\n" ); document.write( "\n" ); document.write( "First two sentences
\n" ); document.write( "\"1%2Fh%2B1%2F18=1%2F12\"\r
\n" ); document.write( "\n" ); document.write( "\"1%2Fh=1%2F12-1%2F18\"\r
\n" ); document.write( "\n" ); document.write( "\"36%2Fh=36%281%2F12-1%2F18%29\"\r
\n" ); document.write( "\n" ); document.write( "\"36%2Fh=3-2\"\r
\n" ); document.write( "\n" ); document.write( "\"36%2Fh=1\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight_green%28h=36%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Last three sentences
\n" ); document.write( "x, how many hours Edward worked alone to finish job
\n" ); document.write( "(No need to know h)
\n" ); document.write( "\"%281%2F12%29%2A4%2B%281%2F18%29x=1\"\r
\n" ); document.write( "\n" ); document.write( "\"1%2F3%2Bx%2F18=1\"\r
\n" ); document.write( "\n" ); document.write( "\"6%2Bx=18\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=12%29\"
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