document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=177559>Question 177559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I do not know how to solve this.<BR>\n" );
document.write( "Solve by substitution <BR>\n" );
document.write( "x+y=10<BR>\n" );
document.write( "y=4x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #132575 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=132575\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=10......eq 1<BR>\n" );
document.write( "y=4x........eq 2<BR>\n" );
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document.write( "take y's value of 4x from eq 2 and plug it into eq 1.<BR>\n" );
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document.write( "x+(4x)=10<BR>\n" );
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document.write( "5x=10<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=2%29 ALIGN=MIDDLE  ALT=\"highlight%28x=2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "now take x's found value and plug it back into either eq 1 or 2. I choose eq 2<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=4%282%29=8%29 ALIGN=MIDDLE  ALT=\"highlight%28y=4%282%29=8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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