document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=459168>Question 459168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by substitution. Check your answer.<BR>\n" );
document.write( "x = 2y<BR>\n" );
document.write( "y = 2x + 3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #314910 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><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=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=314910\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = 2y<BR>\n" );
document.write( "y = 2x + 3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "y = 2(2y) + 3 {substituted 2y, in for x, into bottom equation}<BR>\n" );
document.write( "y = 4y + 3 {multiplied 2 by 2y}<BR>\n" );
document.write( "-3y = 3 {subtracted 4y from both sides}<BR>\n" );
document.write( "y = -1 {divided both sides by -3}\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x = 2y {top equation}<BR>\n" );
document.write( "x = 2(-1) {substituted -1, in for y, into top equation}<BR>\n" );
document.write( "x = -2 {multiplied}\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x = -2 and y = -1\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Check:<BR>\n" );
document.write( "x = 2y<BR>\n" );
document.write( "-2 = 2(-1) {substituted in}<BR>\n" );
document.write( "-2 = -2 {checks in top equation}\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "y = 2x + 3<BR>\n" );
document.write( "-1 = 2(-2) + 3 {substituted in}<BR>\n" );
document.write( "-1 = -4 + 3 {multiplied 2 by -2}<BR>\n" );
document.write( "-1 = -1 {checks in bottom equation}\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<a  rel=nofollow HREF= \"http://www.algebrahouse.com/\" target = \"_blank\">www.algebrahouse.com</a> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );