document.write( "Question 231104: Please answer this question : \" Three years ago, Shara was three times as old as Kaye. Three years hence she will be twice as old a Kaye. Find the present age of each. \" \n" ); document.write( "
Algebra.Com's Answer #171349 by ankor@dixie-net.com(22740)\"\" \"About 
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Three years ago, Shara was three times as old as Kaye.
\n" ); document.write( " Three years hence she will be twice as old a Kaye.
\n" ); document.write( " Find the present age of each.
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\n" ); document.write( "s = Sara's present age
\n" ); document.write( "k = Kay's present age
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\n" ); document.write( "Write an equation for each statement:
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\n" ); document.write( "\" Three years ago, Shara was three times as old as Kaye. \"
\n" ); document.write( "s - 3 = 3(k - 3)
\n" ); document.write( "s - 3 = 3k - 9
\n" ); document.write( "s = 3k - 9 + 3
\n" ); document.write( "s = 3k -6
\n" ); document.write( ":
\n" ); document.write( " \"Three years hence she will be twice as old a Kaye.\"
\n" ); document.write( "s + 3 = 2(k + 3)
\n" ); document.write( "s + 3 = 2k + 6
\n" ); document.write( "s = 2k + 6 - 3
\n" ); document.write( "s = 2k + 3
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\n" ); document.write( " Find the present age of each.
\n" ); document.write( "In the above equation, replace s with (3k-6)
\n" ); document.write( "3k - 6 = 2k + 3
\n" ); document.write( "3k - 2k = 3 + 6
\n" ); document.write( "k = 9 yrs is Kay's present age
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\n" ); document.write( "I'll let you find s. \n" ); document.write( "
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