document.write( "Question 1138455: vivienne is 2 times old as her daughter. eight years later, the sum of their ages will be 79 years old. find the present age of vivienne \n" ); document.write( "
Algebra.Com's Answer #756264 by josgarithmetic(39617)\"\" \"About 
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d, daughter
\n" ); document.write( "2d, Vivienne\r
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\n" ); document.write( "\n" ); document.write( "\"d%2B8%2B%282d%2B8%29=79\"
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\n" ); document.write( "\"3d=79-16\"
\n" ); document.write( "\"d=21\"
\n" ); document.write( "Vivienne is therefore 42.
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