document.write( "Question 575077: John is 4 years older than Kate. In 7 years he will be twice as old as Kate was five years ago. What are their ages now? \n" ); document.write( "
Algebra.Com's Answer #369369 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Let J = John's present age and K = Kate's present age. \n" ); document.write( "J = K+4 \"John is 4 years older than Kate.\" \n" ); document.write( "J+7 = 2(K-5) Substitute J = K+4. \n" ); document.write( "K+4+7 = 2K-10 \n" ); document.write( "K+11 = 2K-10 \n" ); document.write( "K = 21 and J = 25 \n" ); document.write( " \n" ); document.write( " |