document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=232101>Question 232101</A>: <I><SPAN STYLE=\"word-break: break-all;\"> -x-7y=4<BR>\n" );
document.write( "x+4y=-1<BR>\n" );
document.write( "I need to figure out what x is but I don't know how to change it to a positive. <BR>\n" );
document.write( "I have:<BR>\n" );
document.write( "-x=4+7y<BR>\n" );
document.write( "so what would positive x be? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #171619 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=171619\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -x-7y=4<BR>\n" );
document.write( "x+4y=-1 ADD THESE 2 EQUATIONS.<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "-3Y=3<BR>\n" );
document.write( "Y=3/-3<BR>\n" );
document.write( "Y=-1 ANS<BR>\n" );
document.write( "X+4*-1=-1<BR>\n" );
document.write( "X-4=-1<BR>\n" );
document.write( "X=-1+4<BR>\n" );
document.write( "X=3 ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "-3-7*-1=4<BR>\n" );
document.write( "-3+7=4<BR>\n" );
document.write( "4=4\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );