document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=664048>Question 664048</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A dealer sells a certain type of chair and table for $40.  He also sells the same sort of table and a desk for $83 or a chair and a desk for $77.  Find the price of the chair. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #413401 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=413401\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Just in case you are yet in need of the solution...<BR>\n" );
document.write( "Set variables<BR>\n" );
document.write( "x = chair<BR>\n" );
document.write( "y = table<BR>\n" );
document.write( "z = desk<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Given<BR>\n" );
document.write( "(1)  x+y=40 where y=40-x<BR>\n" );
document.write( "(2)  y+z=83<BR>\n" );
document.write( "(3)  x+z=77 where z=77-x<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Solve for x<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Substitution of equations 1 and 3 into the second equation<BR>\n" );
document.write( "(40-x) + (77-x) = 83<BR>\n" );
document.write( "Group like terms<BR>\n" );
document.write( "40+77-83 = x + x<BR>\n" );
document.write( "34 = 2x<BR>\n" );
document.write( "Divide both sides by 2<BR>\n" );
document.write( "x = $17 for the chair<BR>\n" );
document.write( "........................<BR>\n" );
document.write( "Delighted to help.<BR>\n" );
document.write( "-Reading Boosters<BR>\n" );
document.write( "Wanting for others what we want for ourselves. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );