document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=651531>Question 651531</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Translate to a system of equations and solve.<BR>\n" );
document.write( "The sum of two numbers is 8. Their difference is 12. Find the number.<BR>\n" );
document.write( "So far I have:   x+y= 30<BR>\n" );
document.write( "                 x-y= 12<BR>\n" );
document.write( "I don't know what I have to do to solve for the numbers. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #407695 by </B><A HREF=/tutors/aboutme.mpl?userid=rfer><B>rfer(16322)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rfer><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=407695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=8 y=-x+8<BR>\n" );
document.write( "x-y=12<BR>\n" );
document.write( "x-(-x+8)=12<BR>\n" );
document.write( "2x-8=12<BR>\n" );
document.write( "2x=12+8<BR>\n" );
document.write( "x=20/2<BR>\n" );
document.write( "x=10<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "10-y=12<BR>\n" );
document.write( "-y=12-10<BR>\n" );
document.write( "-y=2<BR>\n" );
document.write( "y=-2<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "10-2=8<BR>\n" );
document.write( "I don't know where you got the 30 from. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );