document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113584>Question 113584</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in need of help, solve the system:<BR>\n" );
document.write( "{x^2-100y^2=100<BR>\n" );
document.write( "{x^2+   y^2=100.<BR>\n" );
document.write( "thanks for your help!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82649 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=82649\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> {x^2-100y^2=100<BR>\n" );
document.write( "{x^2+ y^2=100.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Subtract the 1st equation from the 2nd to get:<BR>\n" );
document.write( "101y^2 = 0<BR>\n" );
document.write( "y^2 = 0<BR>\n" );
document.write( "y = 0<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Substitute into x^2 + y^2 = 100 to solve for \"x\":<BR>\n" );
document.write( "x^2 + 02 = 100<BR>\n" );
document.write( "x = +10 or x= -10<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Solution: (10,0) and (-10,0)<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );