document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204153>Question 1204153</A>: <I><SPAN STYLE=\"word-break: break-all;\"> EF is bisected by AC at D. Find AC if EF = 2x + 22, AC = 3x-5, and DE = 2x-4.  </SPAN>\n" );
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document.write( "EF is bisected at D, which means EF is split into two equal pieces ED and DF\r<BR>\n" );
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document.write( "EF = ED+DF <BR>\n" );
document.write( "EF = ED+ED<BR>\n" );
document.write( "EF = 2*ED <BR>\n" );
document.write( "EF = 2*DE\r<BR>\n" );
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document.write( "EF = 2*DE<BR>\n" );
document.write( "2x+22 = 2*(2x-4)<BR>\n" );
document.write( "2x+22 = 4x-8<BR>\n" );
document.write( "2x-4x = -8-22<BR>\n" );
document.write( "-2x = -30<BR>\n" );
document.write( "x = -30/(-2)<BR>\n" );
document.write( "x = 15\r<BR>\n" );
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document.write( "Then,<BR>\n" );
document.write( "AC = 3x-5<BR>\n" );
document.write( "AC = 3*15-5<BR>\n" );
document.write( "AC = 45-5<BR>\n" );
document.write( "AC = <font color=red>40</font><BR>\n" );
document.write( "</font><BR>\n" );
document.write( " </SPAN>\n" );
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