document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=536410>Question 536410</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve each system by substitution.<BR>\n" );
document.write( "{2x+2y=2}<BR>\n" );
document.write( "{-4x+4y=12} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #352323 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=352323\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve each system by substitution.<BR>\n" );
document.write( "{2x+2y=2}<BR>\n" );
document.write( "{-4x+4y=12}<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "They're better suited for elimination, but<BR>\n" );
document.write( "2x+2y=2 --> x + y = 1 --> y = 1-x<BR>\n" );
document.write( "-4x+4y=12<BR>\n" );
document.write( "Sub for y in the 2nd eqn<BR>\n" );
document.write( "-4x + 4(1-x) = 12<BR>\n" );
document.write( "-x + 1-x = 3<BR>\n" );
document.write( "-2x = 2<BR>\n" );
document.write( "x = -1<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "y = 2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );