document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25305>Question 25305</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x-7y=10<BR>\n" );
document.write( "x-4y=5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13566 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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=13566\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-7y=10<BR>\n" );
document.write( "x-4y=5<BR>\n" );
document.write( "We will solve this by substitution;<BR>\n" );
document.write( "first solve equation 1 for x;<BR>\n" );
document.write( "x=10+7y<BR>\n" );
document.write( "Now substitute that into equation 2 for x;<BR>\n" );
document.write( "(10+7y)-4y=5<BR>\n" );
document.write( "10+3y=5<BR>\n" );
document.write( "3y=5-10<BR>\n" );
document.write( "3y=-5<BR>\n" );
document.write( "y=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5%2F3 ALIGN=MIDDLE  ALT=\"-5%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now plug this answer for y in the equation;<BR>\n" );
document.write( "x-4<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-5%2F3%29 ALIGN=MIDDLE  ALT=\"%28-5%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=5<BR>\n" );
document.write( "x-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-20%2F3%29 ALIGN=MIDDLE  ALT=\"%28-20%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=5<BR>\n" );
document.write( "x+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F3 ALIGN=MIDDLE  ALT=\"20%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >=5<BR>\n" );
document.write( "x=5-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F3 ALIGN=MIDDLE  ALT=\"20%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%2F3 ALIGN=MIDDLE  ALT=\"15%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2F3 ALIGN=MIDDLE  ALT=\"20%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5%2F3 ALIGN=MIDDLE  ALT=\"-5%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Hope you understand<BR>\n" );
document.write( "=) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );