document.write( "Question 783346: Noy is twice as old as Kris. In eight years, Noy will be 4 years older than Kris. Find their ages.
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Algebra.Com's Answer #476767 by Cromlix(4381)\"\" \"About 
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Noy is twice as old as Kris
\n" ); document.write( "N = 2K
\n" ); document.write( "In eight years Noy will be
\n" ); document.write( "4 years older than Kris.
\n" ); document.write( "N + 8 = (K + 8) + 4
\n" ); document.write( "Replace N with 2K from 1st equation.
\n" ); document.write( "2K + 8 = K + 12
\n" ); document.write( "Collect like terms
\n" ); document.write( "2K - K = 12 - 8
\n" ); document.write( "K = 4
\n" ); document.write( "Current ages:
\n" ); document.write( "Kris = 4 years old
\n" ); document.write( "Noy = 8 years old.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-)
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