document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=69283>Question 69283</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395937760/algebrahomeworkh>Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I am having difficulty with this problem - please help me if you can.  The chapter is Solving Linear Systems by Linear Combinations (substitution not allowed).\r<BR>\n" );
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document.write( " 2q = 7 - 5p<BR>\n" );
document.write( " 4p - 16 = q\r<BR>\n" );
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document.write( "I am using the 5 step formula - arrange like terms in columns, obtain coefficients that are opposites for one variable, add equations & eliminate one variable & solve, etc...  I did nine other problems this way and solved them.  I don't see what I'm doing wrong with this one.  Any help will be appreciated.<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 #49314 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=49314\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2q = 7 - 5p<BR>\n" );
document.write( " 4p - 16 = q<BR>\n" );
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document.write( "Rearrange:<BR>\n" );
document.write( "1st: 5p+2q=7<BR>\n" );
document.write( "2nd: 4p-q=16<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Multiply 2nd by 2 to get:<BR>\n" );
document.write( "3rd: 8p-2q=32<BR>\n" );
document.write( "Add 1st and 3rd to get:<BR>\n" );
document.write( "13p=39<BR>\n" );
document.write( "p=3<BR>\n" );
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document.write( "Substitute that into 2nd to get:<BR>\n" );
document.write( "4*3-q=16<BR>\n" );
document.write( "q=-4<BR>\n" );
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document.write( "Solution: p=3; q=-4<BR>\n" );
document.write( "Check in 1st: 5p+2q=7<BR>\n" );
document.write( "5*3+2*-4 = 7<BR>\n" );
document.write( "7=7<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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