document.write( "Question 847496: three years ago,Rica was thrice as old as Dandy. three years hence, she will be twice as old. find their present age.
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Algebra.Com's Answer #510480 by swincher4391(1107)\"\" \"About 
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3*(d-3) = (r-3)
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\n" ); document.write( "\n" ); document.write( "3d - 9 = r-3
\n" ); document.write( "2d + 6 = r+3
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\n" ); document.write( "d - 15 = -6\r
\n" ); document.write( "\n" ); document.write( "d = 9\r
\n" ); document.write( "\n" ); document.write( "3(9) - 9 = r -3\r
\n" ); document.write( "\n" ); document.write( "18 = r -3\r
\n" ); document.write( "\n" ); document.write( "r = 21\r
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