document.write( "Question 1002732: Alan is 4 times Peter's age. 12 years ago, he was 7 times as old. What are their ages now? \n" ); document.write( "
Algebra.Com's Answer #619591 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call their ages NOW, a and p. \n" ); document.write( "a = 4p \n" ); document.write( "a-12=7(p-12)=7p-84 \n" ); document.write( "or \n" ); document.write( "a = 7p - 72 \n" ); document.write( "Substituting in we get \n" ); document.write( "4p = 7p - 72 \n" ); document.write( "-3p = -72 \n" ); document.write( "p = 24 \n" ); document.write( "a = 96 \n" ); document.write( " |