document.write( "Question 901473: A man was 25 years old when his son was born . The fathers age is 7 years greater than 3 times the son's age. How old is each at present?
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Algebra.Com's Answer #546747 by josmiceli(19441) $\"\"$ $\"About$

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The difference in their ages will
\n" ); document.write( "always be $\"+25+\"$ years
\n" ); document.write( "Let son's present age = $\"+s+\"$
\n" ); document.write( "Father's present age = $\"+s+%2B+25+\"$
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\n" ); document.write( " $\"+s+%2B+25+=+3s+%2B+7+\"$
\n" ); document.write( " $\"+2s+=+25+-+7+\"$
\n" ); document.write( " $\"+2s+=+18+\"$
\n" ); document.write( " $\"+s+=+9+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+s%2B25+=+34+\"$
\n" ); document.write( "The father is 34 and his son is 9\r
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