document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=163479>Question 163479</A>: <I><SPAN STYLE=\"word-break: break-all;\"> given: RON<BR>\n" );
document.write( "Prove RO=RN-ON </SPAN>\n" );
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document.write( "since that's true, then RO = RN - ON by straight algebraic subtraction of the same quantity from both sides of the equation.<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "by the definition of betweenness, point O is between points R and N because of the following qualities:<BR>\n" );
document.write( "1.  R, O, and N are collinear.<BR>\n" );
document.write( "2.  segments RO + ON = RN<BR>\n" );
document.write( "----<BR>\n" );
document.write( "by algebraic subtraction of equal quanitites from both sides of an equation, you have:<BR>\n" );
document.write( "RO + ON = RN<BR>\n" );
document.write( "subtract ON from both sides of the equation to get<BR>\n" );
document.write( "RO = RN - ON<BR>\n" );
document.write( "-----<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );