document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25229>Question 25229</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve each system by substitution indicate solution as an ordered pair<BR>\n" );
document.write( "y=2x<BR>\n" );
document.write( "x+y=12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13554 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=13554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve by \"substitution\" means you will substitute one variable for one of the equations;<BR>\n" );
document.write( "When you have two equatins,you solve one of them for x or y; then you use that answer to solve the other.<BR>\n" );
document.write( "In this case you are already given what y =;<BR>\n" );
document.write( "y=2x<BR>\n" );
document.write( "Now substitute that into the 2nd equation to solve for x;<BR>\n" );
document.write( "x+y=12<BR>\n" );
document.write( "x+(2x)=12<BR>\n" );
document.write( "3x=12<BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "Now plug that into the equation to solve for y;<BR>\n" );
document.write( "4+y=12<BR>\n" );
document.write( "y=12-4<BR>\n" );
document.write( "y=8<BR>\n" );
document.write( "So your ordered pair would be;<BR>\n" );
document.write( "(4,8)<BR>\n" );
document.write( "hope you understand<BR>\n" );
document.write( "=) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );