document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=24587>Question 24587</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system of equations by substitution: y= xsquared+2x-2 and y=3x+4<BR>\n" );
document.write( "thanx </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13165 by </B><A HREF=/tutors/aboutme.mpl?userid=meghanjax13><B>meghanjax13(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=meghanjax13><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=13165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=x^2+2x-2<BR>\n" );
document.write( "y=3x+4<BR>\n" );
document.write( "substitute 3x+4 for y in the first equation.<BR>\n" );
document.write( "3x+4=x^2+2x-2<BR>\n" );
document.write( "Then solve.<BR>\n" );
document.write( "0=x^2-x-6<BR>\n" );
document.write( "Factor.<BR>\n" );
document.write( "x=3\r<BR>\n" );
document.write( "\n" );
document.write( "Substitute x back into the equation to find y.  <BR>\n" );
document.write( "y=3(3)+4<BR>\n" );
document.write( "y=13\r<BR>\n" );
document.write( "\n" );
document.write( "Check by substituting x and y into the first equation to make sure it works.<BR>\n" );
document.write( "y=x^2+2x-2<BR>\n" );
document.write( "13=3^2+2(3)-2<BR>\n" );
document.write( "13=13\r<BR>\n" );
document.write( "\n" );
document.write( "Hope I could help. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );