document.write( "Question 1123140: Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now.\r
\n" ); document.write( "\n" ); document.write( "If x represents Sarah's age now, which of the following expressions represents Ralph's age in six years?
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Algebra.Com's Answer #739393 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"x\"=age of Sara
\n" ); document.write( "\"3x\"=age of Ralph\r
\n" ); document.write( "\n" ); document.write( "after \"6\" years:\r
\n" ); document.write( "\n" ); document.write( "\"x%2B6\"=age of Sara
\n" ); document.write( "\"3x%2B6\"=age of Ralph, where he will be \"twice\" as old as Sara\r
\n" ); document.write( "\n" ); document.write( "so that:\r
\n" ); document.write( "\n" ); document.write( "\"3x%2B6=2%28x%2B6%29\"
\n" ); document.write( "\"3x%2B6=2x%2B12\"
\n" ); document.write( "\"3x-2x=12-6\"
\n" ); document.write( "\"x=6\"\r
\n" ); document.write( "\n" ); document.write( "Therefore:\r
\n" ); document.write( "\n" ); document.write( "\"x=6\" => age of Sara
\n" ); document.write( "\"3x=3%286%29=18\" => age of Ralph\r
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