document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=852320>Question 852320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1 plus the product of 8 and x is equal to y. The product of 12 and x plus the product of 3 and y is 39. Solve the system of equations for x and y using substitution. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #513298 by </B><A HREF=/tutors/aboutme.mpl?userid=rvfer><B>rvfer(117)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rvfer><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=513298\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=8x+1<BR>\n" );
document.write( "12x+3y=39<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "12x+3(8x+1)=39<BR>\n" );
document.write( "12x+24x+3=39<BR>\n" );
document.write( "36x=39-3<BR>\n" );
document.write( "x=36/36<BR>\n" );
document.write( "x=1<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "12*1+3y=39<BR>\n" );
document.write( "3y=39-12<BR>\n" );
document.write( "3y=27<BR>\n" );
document.write( "y=27/3<BR>\n" );
document.write( "y=9<BR>\n" );
document.write( "----<BR>\n" );
document.write( "(1,9)<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "y=8x+1<BR>\n" );
document.write( "9=8*1+1<BR>\n" );
document.write( "9=9 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );