document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=101364>Question 101364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the sume of two numbers is 80 and their differnce is 18.  FInd the numbers.<BR>\n" );
document.write( "using algebra </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73814 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=73814\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=one number<BR>\n" );
document.write( "And y= the other number\r<BR>\n" );
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document.write( "Then<BR>\n" );
document.write( "x+y=80-----------------eq1<BR>\n" );
document.write( "x-y=18-------------------eq2\r<BR>\n" );
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document.write( "Add eq1 and eq2\r<BR>\n" );
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document.write( "2x=98  divide both sides by 2\r<BR>\n" );
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document.write( "x=49----------------one number<BR>\n" );
document.write( "substitute x=49 into eq1\r<BR>\n" );
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document.write( "49+y=80  subtract 49 from both sides\r<BR>\n" );
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document.write( "y=80-49\r<BR>\n" );
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document.write( "y=31-----------------the other number\r<BR>\n" );
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document.write( "ck 49+31=80<BR>\n" );
document.write( "80=80\r<BR>\n" );
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document.write( "and<BR>\n" );
document.write( "49-31=18<BR>\n" );
document.write( "18=18\r<BR>\n" );
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document.write( "Hope this helps----ptaylor </SPAN>\n" );
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