document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=748492>Question 748492</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two sums of y=x<BR>\n" );
document.write( "            y=-3x-8<BR>\n" );
document.write( "I know on a linear graph they meet at co-ordinates (-2,-2)<BR>\n" );
document.write( "ive been asked to solve the two above sums usng eliminaton and subsitution method for simultanious linear equations I have spent all day trying to work it out ad just cant grasp it could you help please </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455504 by </B><A HREF=/tutors/aboutme.mpl?userid=nilan><B>nilan(17)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nilan><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=455504\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=x -------(A)<BR>\n" );
document.write( "y=-3x-8 -------(B)\r<BR>\n" );
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document.write( "(A)-(B)\r<BR>\n" );
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document.write( "y-y = x-(-3x-8)<BR>\n" );
document.write( "0 = x+3x+8<BR>\n" );
document.write( "0 = 4x+8<BR>\n" );
document.write( "dividing both side by 4<BR>\n" );
document.write( "0 = x+2<BR>\n" );
document.write( "so x = -2\r<BR>\n" );
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document.write( "substituting this into equation (A)<BR>\n" );
document.write( "which is y=x<BR>\n" );
document.write( "y=-2 </SPAN>\n" );
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