document.write( "Question 1079801: Marie is seven years older than Mathew. Twelve years ago, Marie was half as old as Mathew is now. How old is Marie now? \n" ); document.write( "
Algebra.Com's Answer #694014 by rapture(86)\"\" \"About 
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Mathew'a age now is x + 7. \r
\n" ); document.write( "\n" ); document.write( "Marie's age now is x.\r
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\n" ); document.write( "\n" ); document.write( "Mathew's age 12 years ago is (x + 7) - 12.\r
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\n" ); document.write( "\n" ); document.write( "Here is the set up:\r
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\n" ); document.write( "\n" ); document.write( "(x + 7) - 12 = (x/2)\r
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\n" ); document.write( "\n" ); document.write( "You finish.
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