document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=294785>Question 294785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ``Solve by using the elimination method.2r-9s=-109r+2s=40 What is the solution of the system ? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A) the solution is_______(type an ordered pair. use integers or fractions for any numbers in the expression.)B)There are infinitely number of solutions.C) There is no solution.<BR>\n" );
document.write( "Please help me answe this. I am not coming up with the right answer! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #212600 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=212600\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> `Solve by using the elimination method.<BR>\n" );
document.write( "2r - 9s = -10<BR>\n" );
document.write( "9r + 2s = 40<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Multiply the 1st equation by 2 and the 2nd equation by 9<BR>\n" );
document.write( "4r - 18s = -20<BR>\n" );
document.write( "81r +18s = 360<BR>\n" );
document.write( "--------------------Addition eliminates s, find r<BR>\n" );
document.write( "85r = 340<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=340%2F85 ALIGN=MIDDLE  ALT=\"340%2F85\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 4<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find s using the 2nd original equation<BR>\n" );
document.write( "9(4) + 2s = 40<BR>\n" );
document.write( "36 + 2s = 40<BR>\n" );
document.write( "2s = 40 - 36<BR>\n" );
document.write( "2s = 4<BR>\n" );
document.write( "s = 2<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Check solutions in original 1st equation<BR>\n" );
document.write( "2(4) - 9(2) = -10<BR>\n" );
document.write( "8 - 18 = -10, confirms our solution<BR>\n" );
document.write( ":<BR>\n" );
document.write( "A) r, s solution is: 4, 2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );