document.write( "Question 37864: One person can do a job in 8 hours. A second person can do it in 12 hours. if the first person works 2 hours less than the second, how many hours will it take them working together?
\n" ); document.write( "write an algerair solution. let x= length of time first person works and x+2= length of time second works
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Algebra.Com's Answer #23369 by fractalier(6550)\"\" \"About 
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Using t for time, we have
\n" ); document.write( "t/8 + (t + 2)/12 = 1 (we use 1 for one job)
\n" ); document.write( "Now multiply all by 24 (the LCD) and get
\n" ); document.write( "3t + 2(t + 2) = 24
\n" ); document.write( "5t + 4 = 24
\n" ); document.write( "5t = 20
\n" ); document.write( "t = 4
\n" ); document.write( "The 1st person works 4 hrs and the second works 6.
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