document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=77189>Question 77189</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for x and y:\r<BR>\n" );
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document.write( "x*2 + y = 7<BR>\n" );
document.write( "x + y*2 = 11\r<BR>\n" );
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document.write( "I can see that the answer is x = 2, y = 3 BUT how can it be solved other than by graphing? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #55307 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=55307\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for x and y: <BR>\n" );
document.write( "x*2 + y = 7<BR>\n" );
document.write( "x + y*2 = 11 <BR>\n" );
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document.write( "Try using substitution:<BR>\n" );
document.write( "y=7-x^2<BR>\n" );
document.write( "x + (7-x^2)^2=11<BR>\n" );
document.write( "x + 49 -14x^2+ x^4 = 11<BR>\n" );
document.write( "x^4-14x^2+x+38=0<BR>\n" );
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document.write( "Using synthetic substitution you can find that<BR>\n" );
document.write( "x=2 is the only integer solution.<BR>\n" );
document.write( "If x=2, y=3<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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