document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511326>Question 511326</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the elimination method to solve the system of equations. 5u+3v= -16, 2u+v= -7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342140 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=342140\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5u+3v= -16<BR>\n" );
document.write( "2u+v= -7<BR>\n" );
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document.write( "multiply the second equation by 3 and then subtract<BR>\n" );
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document.write( "5u +3v = -16<BR>\n" );
document.write( "6u +3v = -21<BR>\n" );
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document.write( "-u +0v = 5<BR>\n" );
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document.write( "u = -5<BR>\n" );
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document.write( "5(-5) + 3v = -16<BR>\n" );
document.write( "-25 + 3v = -16<BR>\n" );
document.write( "3v = 9<BR>\n" );
document.write( "v = 3<BR>\n" );
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document.write( "check using the second equation<BR>\n" );
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document.write( "6u + 3v = ??<BR>\n" );
document.write( "6(-5) + 3(3) = -30 +9 = -21<BR>\n" );
document.write( "correct<BR>\n" );
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document.write( "Answer u = -5, v = 3<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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