document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=547227>Question 547227</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the equation or formula for the variable specified. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3qr%2B9t=7u ALIGN=MIDDLE  ALT=\"3qr%2B9t=7u\"   DISABLED_style= \"max-width:90%; height:auto;\" > for r  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #356309 by </B><A HREF=/tutors/aboutme.mpl?userid=mathie123><B>mathie123(224)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathie123><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=356309\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3qr%2B9t=7u ALIGN=MIDDLE  ALT=\"3qr%2B9t=7u\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "We need to isolate r.   <BR>\n" );
document.write( "One trick I learned is do your BEDMAS backwards.  So starting with S/A, we see that we have +9t we must get rid of.  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3qr%2B9t-9t=7u-9t ALIGN=MIDDLE  ALT=\"3qr%2B9t-9t=7u-9t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3qr=7u-9t ALIGN=MIDDLE  ALT=\"3qr=7u-9t\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Okay, now there is no more addition or subtraction on the same side of the equation as the r.  the next step is looking for any division or multiplication.  We have a 3 and a q multiplied with the r, so we must divide these out.  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3qr%2F3q=%287u-9t%29%2F3q ALIGN=MIDDLE  ALT=\"3qr%2F3q=%287u-9t%29%2F3q\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=%287u-9t%29%2F3q ALIGN=MIDDLE  ALT=\"r=%287u-9t%29%2F3q\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "And there it is!   </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );