document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028666>Question 1028666</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let<BR>\n" );
document.write( "f(x) = {3x - 7}/{x + 1}.<BR>\n" );
document.write( "Find the inverse f^{-1}(x). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643747 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=643747\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = {3x - 7}/{x + 1}.<BR>\n" );
document.write( "Find the inverse f^{-1}(x)<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "1st:: Interchange x and y to get:<BR>\n" );
document.write( "x = (3y-7)/(y+1)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "2nd: Solve for \"y\"::<BR>\n" );
document.write( "xy + x = 3y-7<BR>\n" );
document.write( "------<BR>\n" );
document.write( "y(x-3) = -x-7<BR>\n" );
document.write( "------<BR>\n" );
document.write( "y = -(x+7)/(x-3)<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "----------------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );