document.write( "Question 431697: Mark is 4 years older than Kate. Together the sum of their ages is three times Kate's age. How old are each? \n" ); document.write( "
Algebra.Com's Answer #299548 by ankor@dixie-net.com(22740)\"\" \"About 
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Mark is 4 years older than Kate.
\n" ); document.write( "m = k+4
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\n" ); document.write( "Together the sum of their ages is three times Kate's age.
\n" ); document.write( "m + k = 3k
\n" ); document.write( "Replace m with (k+4)
\n" ); document.write( "k + 4 + k = 3k
\n" ); document.write( "2k + 4 = 3k
\n" ); document.write( "4 = 3k - 2k
\n" ); document.write( "4 = k
\n" ); document.write( ":
\n" ); document.write( "How old are each? Mark is 8, Kate is 4
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