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)\"\" \"About 
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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
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