document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=643855>Question 643855</A>: <I><SPAN STYLE=\"word-break: break-all;\"> AB= 14x + 25<BR>\n" );
document.write( "BC= 11x - 31<BR>\n" );
document.write( "What is x and AC? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #404704 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=404704\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> AC = AB + BC\r<BR>\n" );
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document.write( "AC = (14x + 25) + (11x - 31)\r<BR>\n" );
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document.write( "AC = 14x + 25 + 11x - 31\r<BR>\n" );
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document.write( "AC = 25x - 6\r<BR>\n" );
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document.write( "So we need to know the length of AC to know the value of x.\r<BR>\n" );
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document.write( "If AB = BC, then...\r<BR>\n" );
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document.write( "14x + 25 = 11x - 31\r<BR>\n" );
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document.write( "14x - 11x = -31 - 25\r<BR>\n" );
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document.write( "3x = -56\r<BR>\n" );
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document.write( "x = -56/3\r<BR>\n" );
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document.write( "Now use this x value to find AC\r<BR>\n" );
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document.write( "Note: x = -56/3 only if AB = BC </SPAN>\n" );
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