document.write( "Question 246677: Two years ago, Anton was three times as old as his sister, Nathalie.In 4 years,He will be only twice his sister's age.Find their present ages. \n" ); document.write( "
Algebra.Com's Answer #180100 by richwmiller(17219)\"\" \"About 
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Anton's present age=a
\n" ); document.write( "Nathalie's present age=n
\n" ); document.write( "a-2=3*(n-2)
\n" ); document.write( "a-2=3n-6
\n" ); document.write( "add 2 to both sides
\n" ); document.write( "a=3n-4\r
\n" ); document.write( "\n" ); document.write( "a+4=2*(n+4)
\n" ); document.write( "substitute 3n-4 for a
\n" ); document.write( "(3n-4)+4=2*(n+4)\r
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