document.write( "Question 1103257: in 3 years David will be 3 times as old as his sister martha. A year ago David was 7 times as old as Martha. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #717970 by josgarithmetic(39620)\"\" \"About 
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d and m, david and martha\r
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\n" ); document.write( "Simplify and solve for d and m.
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