document.write( "Question 508302: John's father is thrice as old as John. 6 years from now, his father will be 24 years older than John. How old is John now? \n" ); document.write( "
Algebra.Com's Answer #340930 by richard1234(7193)\"\" \"About 
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I think we can say that the father is 24 years older than John, regardless of how old they are. If J represents John's age now, then 3J represents John's father's age. This is equal to J+24, so we set an equation\r
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\n" ); document.write( "\n" ); document.write( "3J = J + 24\r
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\n" ); document.write( "\n" ); document.write( "2J = 24\r
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\n" ); document.write( "\n" ); document.write( "J = 12, 3J = 36\r
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\n" ); document.write( "\n" ); document.write( "John is 12, and his father is 36.
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