document.write( "Question 109476: A man being asked of his age replied 'three times the age of my wife minus ten, in five years to come hers will be half mine.' What is the sum of their present age? \n" ); document.write( "
Algebra.Com's Answer #79821 by Fombitz(32388)\"\" \"About 
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Right now, 1.\"M=3W-10\"
\n" ); document.write( "In 5 years, 2.\"%28W%2B5%29=%28M%2B5%29%2F2\"
\n" ); document.write( "Substitute equation 1 in equation 2,
\n" ); document.write( "2.\"%28W%2B5%29=%28M%2B5%29%2F2\"
\n" ); document.write( "\"2%28W%2B5%29=%28M%2B5%29\"
\n" ); document.write( "\"2%28W%2B5%29=%28%283W-10%29%2B5%29\"
\n" ); document.write( "\"2W%2B10=3W-5\"
\n" ); document.write( "\"W=15\"
\n" ); document.write( "\"M=3W-10\"
\n" ); document.write( "\"M=3%2815%29-10\"
\n" ); document.write( "\"M=35\"
\n" ); document.write( "Let's check the answers.
\n" ); document.write( "Right now, he's 35 and she's 15.'three times the age of my wife minus ten'
\n" ); document.write( "In five years, he'll be 40 and she'll be 20.'in five years to come hers will be half mine'
\n" ); document.write( "The sum of their ages now is 35+15=50 years
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