document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=165032>Question 165032</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. A man is now 42 years old and his friend is 33 years old. How many years ago was the man twice as old as his friend was then?\r<BR>\n" );
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document.write( "2. Paul is 3 years younger than his friend Peter. In seven years the product of their ages will be five more than the product of their ages 5 years ago. How old are they now?\r<BR>\n" );
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document.write( "please answer this.. I really need this<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #121638 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=121638\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I want to do more than answer it, I want to show you how to do it.<BR>\n" );
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document.write( "A man is now 42 years old and his friend is 33 years old. How many years ago was the man twice as old as his friend was then?<BR>\n" );
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document.write( "Let t = number of yrs for this to be true<BR>\n" );
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document.write( "Subtract t from both sides and make an equation:<BR>\n" );
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document.write( "Man, t yrs ago, was twice as old, as his friend t yrs ago<BR>\n" );
document.write( "42 - t = 2(33 - t)<BR>\n" );
document.write( "42 - t = 66 - 2t; multiply what's inside the brackets<BR>\n" );
document.write( "Some basic algebra operations<BR>\n" );
document.write( "+2t - t = 66 - 42<BR>\n" );
document.write( "t = 24 yrs ago<BR>\n" );
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document.write( "We can prove this <BR>\n" );
document.write( "42 - 24 = 18;<BR>\n" );
document.write( "33 - 24 = 9 <BR>\n" );
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document.write( "2. Paul is 3 years younger than his friend Peter. In seven years the product of their ages will be five more than the product of their ages 5 years ago. How old are they now? <BR>\n" );
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document.write( "This problem is impossible, there is no way that the product 7 yrs from now<BR>\n" );
document.write( "will be only 5 more than the product 5 yrs ago\r<BR>\n" );
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