document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23911>Question 23911</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you solve systems with subtitute's<BR>\n" );
document.write( "can please solve a few of these example problems so I get an ideal of what I need to do.<BR>\n" );
document.write( "1)2x+7y=3                   x=1-4y<BR>\n" );
document.write( "2)4c=3d+3                   c=d-1<BR>\n" );
document.write( "3)3x-5y=11                  x-3y=1<BR>\n" );
document.write( "4)3x-2y=12                  x=2y=6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #12768 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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=12768\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are already given what one variable =, so plug that into the equation to solve for the other variable.<BR>\n" );
document.write( "1)2x+7y=3 x=1-4y<BR>\n" );
document.write( "2(1-4y)+7y=3<BR>\n" );
document.write( "2-8y+7y=3<BR>\n" );
document.write( "2-y=3<BR>\n" );
document.write( "y=3-2<BR>\n" );
document.write( "y=1<BR>\n" );
document.write( "2x+7(1)=3<BR>\n" );
document.write( "2x+7=3<BR>\n" );
document.write( "2x=3-7<BR>\n" );
document.write( "2x=-4<BR>\n" );
document.write( "x=-2<BR>\n" );
document.write( "See if you can solve the others, if you have problems let me know.<BR>\n" );
document.write( "=)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );