document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=886101>Question 886101</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of five times a number and twice a second number is 18, but the difference of three times the first number and seven times the second number is -22.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #535725 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=535725\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of five times a number and twice a second number is 18, but the difference of three times the first number and seven times the second number is -22. <BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=1st number<BR>\n" );
document.write( "let y=2nd number<BR>\n" );
document.write( "..<BR>\n" );
document.write( "5x+2y=18<BR>\n" );
document.write( "3x-7y=-22<BR>\n" );
document.write( "..<BR>\n" );
document.write( "15x+6y=54 (mult. 1st eq by 3)<BR>\n" );
document.write( "15x-35y=-110 (mult. 2nd eq by 5)<BR>\n" );
document.write( "subtract:<BR>\n" );
document.write( "41y=164<BR>\n" );
document.write( "y=4<BR>\n" );
document.write( "5x=18-2y=18-8=10<BR>\n" );
document.write( "5x=10<BR>\n" );
document.write( "x=2<BR>\n" );
document.write( "point of intersection:(2,4)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );