document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=695564>Question 695564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of the ages of Ruffa and Ai is 65. In 2 years Ruffa will be half as old as Ai. How old are they 3 years ago? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #806686 by </B><A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><B>CubeyThePenguin(3113)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=CubeyThePenguin><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=806686\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r = Ruffa's age<BR>\n" );
document.write( "a = Ai's age\r<BR>\n" );
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document.write( "r + a = 65<BR>\n" );
document.write( "r + 2 = 1/2 * (a + 2)\r<BR>\n" );
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document.write( "Substitute r = 65 - a into the second equation.\r<BR>\n" );
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document.write( "65 - a + 2 = 1/2 * (a + 2)<BR>\n" );
document.write( "67 - a = 1/2 * (a + 2)<BR>\n" );
document.write( "134 - 2a = a + 2<BR>\n" );
document.write( "132 = 3a<BR>\n" );
document.write( "a = 44 -----> r = 21\r<BR>\n" );
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document.write( "3 years ago:<BR>\n" );
document.write( "Ai was 44 - 3 = 41 years old<BR>\n" );
document.write( "Ruffa was 21 - 3 = 18 years old </SPAN>\n" );
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