document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=982041>Question 982041</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the system of equations by the substitution method:<BR>\n" );
document.write( "y=7x+9<BR>\n" );
document.write( "y=9x+10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #602914 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=602914\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "7x+9=9x+10<BR>\n" );
document.write( "-1=2x<BR>\n" );
document.write( "-1/2=x<BR>\n" );
document.write( ".<BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "y=7x+9<BR>\n" );
document.write( "y=7(-1/2)+9<BR>\n" );
document.write( "y=-7/2+18/2<BR>\n" );
document.write( "y=11/2<BR>\n" );
document.write( ".<BR>\n" );
document.write( "y=9x+10<BR>\n" );
document.write( "11/2=9(-1/2)+20/2<BR>\n" );
document.write( "11/2=-9/2+29/2<BR>\n" );
document.write( "11/2=11/2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );