document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=67784>Question 67784</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/093979862x/algebrahomeworkh>An incremental Development</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> please help to solve\r<BR>\n" );
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document.write( "x + 3y = 7<BR>\n" );
document.write( "xy = 2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #48296 by </B><A HREF=/tutors/aboutme.mpl?userid=adamchapman><B>adamchapman(301)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamchapman><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=48296\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rearrange xy=2 to get y=2/x.\r<BR>\n" );
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document.write( "Now put that in the first equation:\r<BR>\n" );
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document.write( "x+(3x/2)=7\r<BR>\n" );
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document.write( "solve:<BR>\n" );
document.write( "2.5x=7<BR>\n" );
document.write( "x=7/2.5<BR>\n" );
document.write( "x=8\r<BR>\n" );
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document.write( "so y=2/8=1/4\r<BR>\n" );
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document.write( "Just like that! \r<BR>\n" );
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document.write( "I hope this helps.\r<BR>\n" );
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document.write( "Best Regards,<BR>\n" );
document.write( "Adam </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );