document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72528>Question 72528</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0495188891/algebrahomeworkh>Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system of equations using the addition (elimination) method.  If the answer is a unique solution, present it as an ordered pair: (x,y).  If not, specify whether the answer is \"no solution\" or \"inifinitely many solutions.\"\r<BR>\n" );
document.write( "\n" );
document.write( "5x + y = -2<BR>\n" );
document.write( "4x + 7y = 2\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51840 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=51840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5x+y=-2, y=-5x-2 now substitute (-5x-2) for y & solve for x<BR>\n" );
document.write( "4x+7(-5x-2)=2<BR>\n" );
document.write( "4x-35x-14=2<BR>\n" );
document.write( "-31x=2+14<BR>\n" );
document.write( "-31x=16<BR>\n" );
document.write( "x=16/-31<BR>\n" );
document.write( "x=-16/31 answer. now substitute -16/31 for x & solve for y<BR>\n" );
document.write( "5*-16/31+y=-2<BR>\n" );
document.write( "-80/31+y=-2<BR>\n" );
document.write( "y=-2+80/31<BR>\n" );
document.write( "y=(-62+80)/31<BR>\n" );
document.write( "y=18/31 answer.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );