document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150376>Question 150376</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x-3y=7<BR>\n" );
document.write( "2x-5y=13 <BR>\n" );
document.write( "solve by substitution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110334 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=110334\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-3y=7<BR>\n" );
document.write( "2x-5y=13 <BR>\n" );
document.write( "solve by substitution<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Solve the 1st for \"x\":<BR>\n" );
document.write( "x = 3y+7<BR>\n" );
document.write( "Substitute that into the 2nd to get:<BR>\n" );
document.write( "2(3y+7) - 5y = 13<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Substitute into x = 3y+7 to solve for \"y\":<BR>\n" );
document.write( "x = 3*-1+7<BR>\n" );
document.write( "x = 4<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );