document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=698528>Question 698528</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Paula is twice as old as Ryan. Seven years ago the sum of their ages was 16. How old is Ryan now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430779 by </B><A HREF=/tutors/aboutme.mpl?userid=neatmath><B>neatmath(302)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=neatmath><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=neatmath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=430779\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><font face=\"Tahoma\">Let P be Paula's current age.<br>\r<BR>\n" );
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document.write( "Let R be Ryan's current age.<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2%2AR ALIGN=MIDDLE  ALT=\"P=2%2AR\"   DISABLED_style= \"max-width:90%; height:auto;\" > given<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28P-7%29%2B%28R-7%29=16 ALIGN=MIDDLE  ALT=\"%28P-7%29%2B%28R-7%29=16\"   DISABLED_style= \"max-width:90%; height:auto;\" > given<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2BR-14=16 ALIGN=MIDDLE  ALT=\"P%2BR-14=16\"   DISABLED_style= \"max-width:90%; height:auto;\" > simplify the second equation<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2BR=30 ALIGN=MIDDLE  ALT=\"P%2BR=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "Then just substitute the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2%2AR ALIGN=MIDDLE  ALT=\"P=2%2AR\"   DISABLED_style= \"max-width:90%; height:auto;\" > into that simplified equation:<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2AR%29%2BR=30 ALIGN=MIDDLE  ALT=\"%282%2AR%29%2BR=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2AR=30 ALIGN=MIDDLE  ALT=\"3%2AR=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=10 ALIGN=MIDDLE  ALT=\"R=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "Thus, Ryan is now 10 years old, and Paula is 20 years old.<br>\r<BR>\n" );
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document.write( "Check it, it works!<br>\r<BR>\n" );
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document.write( "I hope this helps!  Keep practicing!  :)<br>\r<BR>\n" );
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