document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1075054>Question 1075054</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I)	a (f) b = a/b – 2(b f a)<BR>\n" );
document.write( "II)	3 (f) 1 = -7/9<BR>\n" );
document.write( "III)	2 (f) 1 = ?<BR>\n" );
document.write( "In the equations above, the function of  (f) remains unchanged. What does the question mark  stand for in the third equation?<BR>\n" );
document.write( "a)	-2/3,  b)-1/3,  c) 2/3,  d)1,  e)3<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 #689752 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=689752\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The purpose for (I) must have been to show how the OPERATION (f) is supposed to work.\r<BR>\n" );
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document.write( "The purpose of (II) seems unnecessary other than to help to be sure we have used the operation as defined in (I) correctly.\r<BR>\n" );
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document.write( "Following the definition for f demonstrated in (I), choice (b) seems to be the result for  (2 f 1); .\r<BR>\n" );
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document.write( "III.\r<BR>\n" );
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document.write( "2f1=2/1-2(1f2)\r<BR>\n" );
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document.write( "=2-2(1/2-2(2f1))\r<BR>\n" );
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document.write( "=2-1+4(2f1)\r<BR>\n" );
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document.write( "2f1=2-1+4(2f1)\r<BR>\n" );
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document.write( "2f1=1+4(2f1)\r<BR>\n" );
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document.write( "0=1+3(2f1)\r<BR>\n" );
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document.write( "-1=3(2f1)\r<BR>\n" );
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document.write( "-1/3=2f1<BR>\n" );
document.write( "Corresponding to choice b. </SPAN>\n" );
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