document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=107810>Question 107810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the system by substitution:\r<BR>\n" );
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document.write( "4x-4y=0<BR>\n" );
document.write( "    y=2x-5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78589 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=78589\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Y=2X-5<BR>\n" );
document.write( "4X-4(2X-5)=0<BR>\n" );
document.write( "4X-8X+20=0<BR>\n" );
document.write( "-4X=-20<BR>\n" );
document.write( "X=-20/-4<BR>\n" );
document.write( "X=5 ANSWER.<BR>\n" );
document.write( "Y=2*5-5<BR>\n" );
document.write( "Y=10-5<BR>\n" );
document.write( "Y=5<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "4*5-4*5=0<BR>\n" );
document.write( "20-20=0<BR>\n" );
document.write( "0=0<BR>\n" );
document.write( " </SPAN>\n" );
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