document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167834>Question 167834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi, i need help how to solve the linear system by using eliminations....<BR>\n" );
document.write( "          8x-4y=-76<BR>\n" );
document.write( "          5x+2y=-16<BR>\n" );
document.write( "people have tried to help me but i dont get it at all. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123730 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=123730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the linear system by using eliminations....<BR>\n" );
document.write( "8x-4y=-76<BR>\n" );
document.write( "5x+2y=-16<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Multiply thru the 2nd equation by 2:<BR>\n" );
document.write( " 8x-4y=-76<BR>\n" );
document.write( "10x+4y=-32<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Add the two equation to eliminate the y-terms.<BR>\n" );
document.write( "18x = -108<BR>\n" );
document.write( "x = -6<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "Substitute that into 5x+2y = -16 to solve for y:<BR>\n" );
document.write( "5*-6 + 2y = -16<BR>\n" );
document.write( "-30 + 2y = -16<BR>\n" );
document.write( "2y = 14<BR>\n" );
document.write( "y = 7<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Solution: x=-6; y=7<BR>\n" );
document.write( "=======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );