document.write( "Question 776241: John is now four times as old as James. In 5 years, John will be three times as old as James. Find their present ages. \n" ); document.write( "
Algebra.Com's Answer #473477 by Cromlix(4381)\"\" \"About 
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John is now four times as old as James.
\n" ); document.write( "John's age = 4 x James' age
\n" ); document.write( "Jo = 4Ja
\n" ); document.write( "In 5 years, John will be three times as old as James.
\n" ); document.write( "John + 5 = 3(James + 5)
\n" ); document.write( "Jo + 5 = 3Ja + 15
\n" ); document.write( "Replace Jo with 4Ja from first equation
\n" ); document.write( "4Ja + 5 = 3Ja + 15
\n" ); document.write( "Collect like terms.
\n" ); document.write( "4Ja - 3Ja = 15 - 5
\n" ); document.write( "Ja = 10.
\n" ); document.write( "Present ages:
\n" ); document.write( "John is 40 years old
\n" ); document.write( "James is 10 years old.
\n" ); document.write( "Hope this helps.
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