document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=297349>Question 297349</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you show the steps of solving this problem by cross multiplying            (7-2n)/(7+2n)=1/18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #214138 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=214138\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is one reason that many teachers don't like \"cross multiplying\"<BR>\n" );
document.write( "Cross multiplying is a short cut to this<BR>\n" );
document.write( "Multiply both sides by 7+2n<BR>\n" );
document.write( "Multiply both sides by 18<BR>\n" );
document.write( "In cross multiplying you just remove the denominators and multiply the opposite numerator by the denominator\r<BR>\n" );
document.write( "\n" );
document.write( "a/b=c/d<BR>\n" );
document.write( "multiply c*b and a*d<BR>\n" );
document.write( "Multiply the numerator on one side by the denominator on the other side.<BR>\n" );
document.write( "Do it again with the other side.<BR>\n" );
document.write( "So in the end you should have <BR>\n" );
document.write( "(7-2n)*18 = 1*(7+2n)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );