document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697692>Question 697692</A>: <I><SPAN STYLE=\"word-break: break-all;\"> three pairs of jeans and six shirts cost $195. the cost of four pairs of jeans and five shirts is $215. what is the price of one pair of jeans and one shirt? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430957 by </B><A HREF=/tutors/aboutme.mpl?userid=sofiyac><B>sofiyac(983)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sofiyac><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/cgi-bin/show-face.mpl?user=sofiyac><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=430957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> three pairs of jeans and six shirts cost $195. the cost of four pairs of jeans and five shirts is $215. what is the price of one pair of jeans and one shirt?<BR>\n" );
document.write( "let one pair of jeans cost x and one shirt cost y, then<BR>\n" );
document.write( "3x+6y=195<BR>\n" );
document.write( "4x+5y=215 <BR>\n" );
document.write( "next we multiply first equation by -4 and second one by 3 and we get\r<BR>\n" );
document.write( "\n" );
document.write( "-12x-24y=-780<BR>\n" );
document.write( "12x+15y=645 now add these questions and your x terms will cancel out (add to 0)<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "-9y=-135  divide both sides by -9<BR>\n" );
document.write( "y=15 so one shirt is $15 now plug that into either of the original equations and solve for x, i'll use the first equation<BR>\n" );
document.write( "3x+6*15=195<BR>\n" );
document.write( "3x+90=195 subtract 90 from each side<BR>\n" );
document.write( "3x=105 divide each side by 3<BR>\n" );
document.write( "x=35 so pair of jeans is $35 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );