document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=816678>Question 816678</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please Help..<BR>\n" );
document.write( "Five years ago, Roel was three times as old as his brother, Tony. In 10 years, he will be 10 years older than Tony. Find their present ages. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #491660 by </B><A HREF=/tutors/aboutme.mpl?userid=LinnW><B>LinnW(1048)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=LinnW><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=LinnW><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=491660\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Five years ago, Roel was three times as old as his brother, Tony. In 10 years, he will be 10 years older than Tony. Find their present ages.\r<BR>\n" );
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document.write( " Set r = age of Roel<BR>\n" );
document.write( " Set t = age of Tony\r<BR>\n" );
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document.write( " ( r - 5 ) = 3(t-5)<BR>\n" );
document.write( " ( r + 10 ) = ( t + 10 ) + 10\r<BR>\n" );
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document.write( "Simplifying<BR>\n" );
document.write( "   r - 5 = 3t - 15<BR>\n" );
document.write( "   r + 10 = t + 20\r<BR>\n" );
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document.write( "Subtract the bottom equation from the top<BR>\n" );
document.write( "     -15 = 2t - 35<BR>\n" );
document.write( "Add 35 to each side.<BR>\n" );
document.write( "      20 = 2t<BR>\n" );
document.write( "      10 = t<BR>\n" );
document.write( "Substitute 10 for t in the equation r + 10 = t + 20<BR>\n" );
document.write( "      r + 10 = 10 + 20<BR>\n" );
document.write( "Subtract 10 from each side<BR>\n" );
document.write( "      r = 20<BR>\n" );
document.write( "To check our answer, substitute 10 for t and 20 for r in the equations<BR>\n" );
document.write( " ( r - 5 ) = 3(t-5)<BR>\n" );
document.write( " ( r + 10 ) = ( t + 10 ) + 10\r<BR>\n" );
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document.write( " ( 20 - 5 ) = 3(10-5) so 15 = 3(5) or 15 = 15<BR>\n" );
document.write( " ( 20 + 10 ) = ( 10 + 10 ) + 10 so 30 = 30\r<BR>\n" );
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document.write( "We can say that Roel is 20 and Tony is 10. </SPAN>\n" );
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