document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293149>Question 293149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by elimination method<BR>\n" );
document.write( "3r-4s=-19<BR>\n" );
document.write( "4r+3s=33 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211635 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=211635\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3r-4s=-19 MULTIPLY BY 3<BR>\n" );
document.write( "4r+3s=33 MULTIPLY BY 4 & ADD.<BR>\n" );
document.write( "9r-12s=-57<BR>\n" );
document.write( "16r+12s=132<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "25r=75<BR>\n" );
document.write( "r=75/25<BR>\n" );
document.write( "r=3 ans.<BR>\n" );
document.write( "3*3-4r=-19<BR>\n" );
document.write( "9-4s-19<BR>\n" );
document.write( "-4s-19-9<BR>\n" );
document.write( "-4s-28<BR>\n" );
document.write( "s-28/-4<BR>\n" );
document.write( "s=7 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "4*3+3*7=33<BR>\n" );
document.write( "12+21=33<BR>\n" );
document.write( "33=33<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );