document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=674949>Question 674949</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to solve this system of linear equation by the substitution method step by step? 4x+6y=2340<BR>\n" );
document.write( "       x+y=480<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 #419481 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=419481\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x+6y=2340<BR>\n" );
document.write( "x+y=480<BR>\n" );
document.write( "...<BR>\n" );
document.write( "solve for x<BR>\n" );
document.write( "x = 480-y<BR>\n" );
document.write( "...<BR>\n" );
document.write( "substitute into the first equation<BR>\n" );
document.write( "4(480-y) + 6y = 2340<BR>\n" );
document.write( "...<BR>\n" );
document.write( "1920 - 4y + 6y = 2340<BR>\n" );
document.write( "...<BR>\n" );
document.write( "2y = 2340-1920<BR>\n" );
document.write( "2y = 420<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y+=+210%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y+=+210%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "...<BR>\n" );
document.write( "Plug the y valute into the x+y=480 equation<BR>\n" );
document.write( "x + 210 = 480<BR>\n" );
document.write( "x = 480 - 210<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28x+=+270%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x+=+270%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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