document.write( "Question 165703: A man is now 42 years old and his friend is 33 years old. How many years ago was the man twice as old as his friend was then? \n" ); document.write( "

Algebra.Com's Answer #122157 by Fombitz(32388) $\"\"$ $\"About$

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Today,
\n" ); document.write( " $\"M=42\"$
\n" ); document.write( " $\"F=33\"$
\n" ); document.write( "Find X such that,
\n" ); document.write( " $\"M-X=2%28F-X%29\"$
\n" ); document.write( " $\"42-X=2%2833-X%29\"$
\n" ); document.write( " $\"42-X=66-2X\"$
\n" ); document.write( " $\"X=66-42\"$
\n" ); document.write( " $\"X=24\"$
\n" ); document.write( "Twenty four years ago the man was
\n" ); document.write( " $\"M=42-24=18\"$
\n" ); document.write( "while his friend was
\n" ); document.write( " $\"F=33-24=9\"$
\n" ); document.write( "and
\n" ); document.write( " $\"18=2%289%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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