document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=64681>Question 64681</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 : Solve the system by graphing and then get an exact solution by using either substitution or elimination :\r<BR>\n" );
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document.write( "2x - y = -1\r<BR>\n" );
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document.write( "6x + 3y = 0\r<BR>\n" );
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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 #46278 by </B><A HREF=/tutors/aboutme.mpl?userid=jayanthihemkos@yahoo.com><B>jayanthihemkos@yahoo.com(87)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jayanthihemkos@yahoo.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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=46278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (2x-y=-1)3<BR>\n" );
document.write( "6x-3y=-3       ------------------------1<BR>\n" );
document.write( "6x+3y=0        -------------------------2<BR>\n" );
document.write( "subtract2 from1<BR>\n" );
document.write( "change the sign<BR>\n" );
document.write( "-6y=-3<BR>\n" );
document.write( "y=3/6<BR>\n" );
document.write( "y=1/2<BR>\n" );
document.write( "2x-y =-1<BR>\n" );
document.write( "substitute the value of y in this equation<BR>\n" );
document.write( "2x-1/2 =-1<BR>\n" );
document.write( "4x-1=-2<BR>\n" );
document.write( "4x=-2+1<BR>\n" );
document.write( "4x=-1<BR>\n" );
document.write( "x=-1/4 </SPAN>\n" );
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