document.write( "Question 477916: My age is now four times yours, but five years ago it was five times yours. how old was the man? \n" ); document.write( "

Algebra.Com's Answer #327490 by mangopeeler07(462) $\"\"$ $\"About$

You can put this solution on YOUR website!

M=my age
\n" ); document.write( "Y=your age

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My age is now four times yours:
\n" ); document.write( " $\"M=4Y\"$

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But five years ago it was five times yours:
\n" ); document.write( " $\"M-5=5%28Y-5%29\"$

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Plug in 4Y for M:
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Simplify both sides
\n" ); document.write( " $\"20=Y\"$

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So \"your age\" is 20. \"My age\" is 80.

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\n" ); document.write( "\n" ); document.write( "If you check it, that works. Five years ago \"you\" would have been 15 and \"my age\" would have been 75. 15*5=75 \n" ); document.write( "

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