document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=13638>Question 13638</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x+(x-10)+1/2x=180<BR>\n" );
document.write( "to solve this problem we will use simple algebra<BR>\n" );
document.write( "that is<BR>\n" );
document.write( "x+x-10+1/2x=180<BR>\n" );
document.write( "2x+1/2x=180+10<BR>\n" );
document.write( "taking lcm<BR>\n" );
document.write( "(2x(2x)+1)/2x=190<BR>\n" );
document.write( "(4x^2+1)/2x=190<BR>\n" );
document.write( "by cross mutiplication<BR>\n" );
document.write( "4x^2+1=190*2x\r<BR>\n" );
document.write( "\n" );
document.write( "4x^2+1=380x\r<BR>\n" );
document.write( "\n" );
document.write( "4x^2-380x+1=0<BR>\n" );
document.write( "now we can do it either by qudratic formula <BR>\n" );
document.write( "or completing square method<BR>\n" );
document.write( " </SPAN>\n" );
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