document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=251778>Question 251778</A>: <I><SPAN STYLE=\"word-break: break-all;\"> log(3) 21 - log(3) 7 = log(3)Y<BR>\n" );
document.write( "what and how do you find the Y?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #183457 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=183457\">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=log%283%2C%2821%29%29-log%283%2C%287%29%29=log%283%2C%28y%29%29 ALIGN=MIDDLE  ALT=\"log%283%2C%2821%29%29-log%283%2C%287%29%29=log%283%2C%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%283%2C%2821%2F7%29%29=log%283%2C%28y%29%29 ALIGN=MIDDLE  ALT=\"log%283%2C%2821%2F7%29%29=log%283%2C%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine the logs on the left side using the identity <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%28b%2C%28A%29%29-log%28b%2C%28B%29%29=log%28b%2C%28A%2FB%29%29 ALIGN=MIDDLE  ALT=\"log%28b%2C%28A%29%29-log%28b%2C%28B%29%29=log%28b%2C%28A%2FB%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%283%2C%283%29%29=log%283%2C%28y%29%29 ALIGN=MIDDLE  ALT=\"log%283%2C%283%29%29=log%283%2C%28y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Reduce.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3=y ALIGN=MIDDLE  ALT=\"3=y\"   DISABLED_style= \"max-width:90%; height:auto;\" > Since the bases of the logs are equal, the arguments (the expressions inside the logs) are equal.\r<BR>\n" );
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document.write( "So the solution is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3 ALIGN=MIDDLE  ALT=\"y=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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