document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=87369>Question 87369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The question is:\r<BR>\n" );
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document.write( "Solve the system of linear equations using substitution method<BR>\n" );
document.write( "x+3y=7<BR>\n" );
document.write( "2x-3y=8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #63305 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=63305\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+3y=7 or x=7-3y now we replace x in the second equation by(7-3y) & solve for y<BR>\n" );
document.write( "2(7-3y)-3y=8<BR>\n" );
document.write( "14-6y-3y=8<BR>\n" );
document.write( "-9y=8-14<BR>\n" );
document.write( "-9y=-6<BR>\n" );
document.write( "y=-6/-9<BR>\n" );
document.write( "y=2/3 answer.<BR>\n" );
document.write( "x=7-3*2/3<BR>\n" );
document.write( "x=7-6/3<BR>\n" );
document.write( "x=7-2<BR>\n" );
document.write( "x=5 answer.<BR>\n" );
document.write( "proof<BR>\n" );
document.write( "2*5-3*2/3=8<BR>\n" );
document.write( "10-6/3=8<BR>\n" );
document.write( "10-2=8<BR>\n" );
document.write( "8=8 </SPAN>\n" );
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