document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1192468>Question 1192468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Twice a number added to half of itself equals 20.Find the number </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #824340 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3816)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=824340\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "x = some unknown number<BR>\n" );
document.write( "2x = twice the number<BR>\n" );
document.write( "x/2 = 0.5x = half of the number<BR>\n" );
document.write( "2x + 0.5x = adding the two previous expressions<BR>\n" );
document.write( "2x + 0.5x = 20\r<BR>\n" );
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document.write( "Solving for x<BR>\n" );
document.write( "2x + 0.5x = 20<BR>\n" );
document.write( "(2 + 0.5)x = 20<BR>\n" );
document.write( "2.5x = 20<BR>\n" );
document.write( "x = 20/(2.5)<BR>\n" );
document.write( "x = 8<BR>\n" );
document.write( "The unknown number is 8\r<BR>\n" );
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document.write( "2x = 2*8 = 16 is the result after doubling<BR>\n" );
document.write( "x/2 = 8/2 = 4 is the result after halving<BR>\n" );
document.write( "Sum = 16+4 = 20 which confirms we have the correct x value.\r<BR>\n" );
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document.write( "Answer: 8<BR>\n" );
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