document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171363>Question 171363</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I apologize if this is in the wrong heading. My problem is systems of linear equation by substitution. { y=4x { y=2x+6\r<BR>\n" );
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document.write( "I am not sure how to do this problem. I tried  getting the numbers to match up so i could figure it out, but i cant seem to grasp it. Sorry if you cannot solve this problem and i'm sorry for wasting your time, but i am about ready to give up. This is a worksheet, and not from a book, by the way.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126507 by </B><A HREF=/tutors/aboutme.mpl?userid=gonzo><B>gonzo(654)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=gonzo><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=126507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> your 2 equations are:<BR>\n" );
document.write( "y = 4x<BR>\n" );
document.write( "y = 2x+6<BR>\n" );
document.write( "since both equations equal to y, then they both must be equal to each other.<BR>\n" );
document.write( "so.......<BR>\n" );
document.write( "4x = 2x + 6<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "this is the same as saying substitute 4x for y in the second equation because y = 4x from the first equation.<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "4x = 2x + 6<BR>\n" );
document.write( "simplify:<BR>\n" );
document.write( "2x = 6<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "now you have x, you can solve for y.<BR>\n" );
document.write( "in the first equation.<BR>\n" );
document.write( "y = 4x<BR>\n" );
document.write( "y = 4*3)<BR>\n" );
document.write( "y = 12<BR>\n" );
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document.write( "in the second equation.<BR>\n" );
document.write( "y = 2x + 6<BR>\n" );
document.write( "y = 2*3 + 6<BR>\n" );
document.write( "y = 6 + 6<BR>\n" );
document.write( "y = 12<BR>\n" );
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document.write( "you get the same value of y and x in both equation so you have solved them simultaneously.<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "y = 12<BR>\n" );
document.write( "-----<BR>\n" );
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