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)![]() ![]() You can put this solution on YOUR website! 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( ":-) \n" ); document.write( " |