document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1203344>Question 1203344</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If ST = 5, TU = 3x, and SU = 4x, what is SU? </SPAN>\n" );
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document.write( "Here are two assumptions I'll make<ul><li>Points S,T,U are collinear. In other words, they all are on the same straight line.</li><li>T is between S and U.</li></ul>If both assumptions are correct, then we use the segment addition postulate.<BR>\n" );
document.write( "ST + TU = SU<BR>\n" );
document.write( "5 + 3x = 4x<BR>\n" );
document.write( "5 = 4x-3x<BR>\n" );
document.write( "5 = x<BR>\n" );
document.write( "x = 5\r<BR>\n" );
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document.write( "This would yield SU = 4x = 4*5 = 20<BR>\n" );
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