document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=712217>Question 712217</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve:\r<BR>\n" );
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document.write( "((4x)/(-5x+13))>=20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #437826 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=437826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ((4x)/(-5x+13))>=20 cross multiply<BR>\n" );
document.write( "4x>=20(-5x+13)<BR>\n" );
document.write( "4x>=-100x+260<BR>\n" );
document.write( "4x+100x>=260<BR>\n" );
document.write( "104x>=260<BR>\n" );
document.write( "x>=260/104<BR>\n" );
document.write( "x>=2.5 ans.<BR>\n" );
document.write( "proof:<BR>\n" );
document.write( "let x=2.5<BR>\n" );
document.write( "((4*2.5)/(-5*2.5+13)>=20<BR>\n" );
document.write( "((10)/(-12.5+13)>=20<BR>\n" );
document.write( "10/.5=20<BR>\n" );
document.write( "20=20 </SPAN>\n" );
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