document.write( "Question 630946: A man was 25 years old when his son was born.The father's age is 7 years greater than 3 times the son's age. How old is each at present ? \n" ); document.write( "

Algebra.Com's Answer #397228 by josmiceli(19441) $\"\"$ $\"About$

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The Father will always be 25 year older than his Son
\n" ); document.write( "Let $\"+f+\"$ = Father's age now
\n" ); document.write( "Let $\"+s+\"$ = Son's age now
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+f+=+s+%2B+25+\"$
\n" ); document.write( "(2) $\"+f+=+3s+%2B+7+\"$
\n" ); document.write( "By substitution:
\n" ); document.write( " $\"+s+%2B+25+=+3s+%2B+7+\"$
\n" ); document.write( " $\"+2s+=+18+\"$
\n" ); document.write( " $\"+s+=+9+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+f+=+s+%2B+25+\"$
\n" ); document.write( "(1) $\"+f+=+9+%2B+25+\"$
\n" ); document.write( "(10 $\"+f+=+34+\"$
\n" ); document.write( "The Father's age is 34
\n" ); document.write( "The Son's age is 9 \n" ); document.write( "

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