document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=505150>Question 505150</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The difference  of a four times a number  and seven times the number is 9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339789 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=339789\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <BR>\n" );
document.write( "Number = x<BR>\n" );
document.write( "Four times of x = 4*x = 4x<BR>\n" );
document.write( "Seven times of x = 7*x = 7x<BR>\n" );
document.write( "Difference of 7x & 4x = 7x-4x which is equal to 9<BR>\n" );
document.write( "7x-4x=9<BR>\n" );
document.write( "3x=9<BR>\n" );
document.write( "Divide by 3 both sides of the equation<BR>\n" );
document.write( "3x/3=9/3<BR>\n" );
document.write( "x=3\r<BR>\n" );
document.write( "\n" );
document.write( "Number is 3\r<BR>\n" );
document.write( "\n" );
document.write( "Check<BR>\n" );
document.write( "7x-4x=9<BR>\n" );
document.write( "Plug in the value of x in above equation<BR>\n" );
document.write( "7(3)-4(3) = 9<BR>\n" );
document.write( "21-12=9<BR>\n" );
document.write( "9=9 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );