document.write( "Question 1183017: Mr John is 55years old. 15 years ago,he was 4 times older than his son.How old is his son now. \n" ); document.write( "

Algebra.Com's Answer #813165 by josgarithmetic(39620) $\"\"$ $\"About$

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Mr. John today, 55
\n" ); document.write( "His son today, h
\n" ); document.write( "Mr. John fifteen years ago, 40
\n" ); document.write( "His son fifteen years ago, h-15\r
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\n" ); document.write( "\n" ); document.write( "The description:
\n" ); document.write( " $\"40=%28h-15%29%2B4%28h-15%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Simplify and solve,
\n" ); document.write( " $\"40=5%28h-15%29\"$
\n" ); document.write( " $\"40=5h-75\"$
\n" ); document.write( " $\"8=h-15\"$
\n" ); document.write( " $\"highlight%28h=23%29\"$ \n" ); document.write( "

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