document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=840438>Question 840438</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the exact solution(s) of each system of equations\r<BR>\n" );
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document.write( "x^2-y^2=-8<BR>\n" );
document.write( "y=2x+1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #506171 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=506171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the exact solution(s) of each system of equations <BR>\n" );
document.write( "x^2-y^2=-8<BR>\n" );
document.write( "y=2x+1<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Substitute for \"y\" and solve for \"x\"::<BR>\n" );
document.write( "x^2 - (2x+1)^2 = -8<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "x^2 - (4x^2 + 4x + 1) = -8<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "-3x^2-4x+7 = 0<BR>\n" );
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document.write( "-3x^2-7x+3x+7 = 0<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "-x(3x+7) + (3x+7) = 0<BR>\n" );
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document.write( "(3x+7)(-x+1) = 0<BR>\n" );
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document.write( "x = -7/3 or x = 1<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "========================== </SPAN>\n" );
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