document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=352234>Question 352234</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the system of simultaneous equations by using the substitution method?\r<BR>\n" );
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document.write( "          x=10-y<BR>\n" );
document.write( "          y=x-8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #251709 by </B><A HREF=/tutors/aboutme.mpl?userid=sofiyac><B>sofiyac(983)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sofiyac><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/cgi-bin/show-face.mpl?user=sofiyac><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=251709\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the system of simultaneous equations by using the substitution method?\r<BR>\n" );
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document.write( "          x=10-y<BR>\n" );
document.write( "          y=x-8<BR>\n" );
document.write( "I think you meant to say \"solve the system of equations using the substitution method\".<BR>\n" );
document.write( "Ok so you already have that y=x-8 in the second equation, so plug that into your first one, you get <BR>\n" );
document.write( "x=10-(x-8) then distribute the minus and you get<BR>\n" );
document.write( "x=10-x+8  simplify and you get<BR>\n" );
document.write( "x=18-x     now add x to each side of the equation and you get<BR>\n" );
document.write( "2x=18 divide each side by 2 and you get<BR>\n" );
document.write( "x=9  then you plug that into the second original equation y=9-8 and you get <BR>\n" );
document.write( "y=1<BR>\n" );
document.write( "so the solution is (9,1) </SPAN>\n" );
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