document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=120643>Question 120643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find values for m and b in the following system so that the solution to the system  is (-3,4)\r<BR>\n" );
document.write( "\n" );
document.write( "5x+7y=b<BR>\n" );
document.write( "mx+y=22 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #88488 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=88488\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If we require that the solution is (-3,4),\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%28-3%29%2B7%284%29=13=b ALIGN=MIDDLE  ALT=\"5%28-3%29%2B7%284%29=13=b\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute values for x and y into the first equation\r<BR>\n" );
document.write( "\n" );
document.write( "and \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%28-3%29%2B4=22 ALIGN=MIDDLE  ALT=\"m%28-3%29%2B4=22\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute values for x and y into the second equations<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3m=18 ALIGN=MIDDLE  ALT=\"-3m=18\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 4 from both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=-6 ALIGN=MIDDLE  ALT=\"m=-6\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by -3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "then, m=-6, b=13 makes this system true. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );