document.write( "Question 658387: Dayna is 8 and her mother is 31. How long will it be before her mother is twice as old as she is?
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Algebra.Com's Answer #410265 by stanbon(75887)\"\" \"About 
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Dayna is 8 and her mother is 31. How long will it be before her mother is twice as old as she is?
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\n" ); document.write( "Equations:
\n" ); document.write( "d = 8
\n" ); document.write( "m = 31
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\n" ); document.write( "Let the \"how long\" be x:
\n" ); document.write( "m + x = 2(d+x)
\n" ); document.write( "31 + x = 2(8+x)
\n" ); document.write( "31 + x = 16 + 2x
\n" ); document.write( "x = 15 (# of years required)
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\n" ); document.write( "Dayna will be 8+15 = 23
\n" ); document.write( "Mother will be 31 + 15 = 46
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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