document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855349>Question 855349</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of x in each proportion. <BR>\n" );
document.write( "a) x + 1 over 3 equals 10 over x + 2<BR>\n" );
document.write( "b) x - 2 over 5 equals 12 over x + 2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515270 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=515270\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the value of x in each proportion. <BR>\n" );
document.write( "a) x + 1 over 3 equals 10 over x + 2<BR>\n" );
document.write( "(x+1)/3 = 10/(x+2)<BR>\n" );
document.write( "Cross-multiply to get:<BR>\n" );
document.write( "x^2 + 3x + 2 = 30<BR>\n" );
document.write( "x^2 + 3x - 28 = 0<BR>\n" );
document.write( "(x+7)(x-4) = 0<BR>\n" );
document.write( "x = -7 or x = 4<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "b) x - 2 over 5 equals 12 over x + 2<BR>\n" );
document.write( "(x-2)/5 = 12/(x+2)<BR>\n" );
document.write( "x^2-4 = 60<BR>\n" );
document.write( "x^2 = 64<BR>\n" );
document.write( "x = 8 or x = -8<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );