document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=130750>Question 130750</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780395977224/algebrahomeworkh>algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Hi! The problem with this is: Adding<BR>\n" );
document.write( "2x-1<BR>\n" );
document.write( "-x+1<BR>\n" );
document.write( "Please and Thank You=) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #95467 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=95467\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given to add:<BR>\n" );
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document.write( "2x - 1<BR>\n" );
document.write( "-x + 1<BR>\n" );
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document.write( "Presumably you are adding these in their vertical columns. In the first column you have <BR>\n" );
document.write( "+2x and -x. (The minus x can be thought of as -1x so the problem is +2x + (-1x) and adding<BR>\n" );
document.write( "+2 and -1 results in +1. So the result of adding 2x and -x is +1x which we write as just +x)<BR>\n" );
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document.write( "Next go to the other column in which you have -1 and you add to it +1. The two numbers are <BR>\n" );
document.write( "the same, but they have opposite signs. Therefore, when you add them, they cancel each other out<BR>\n" );
document.write( "or if you prefer, they add to zero. So the answer you get by adding the two columns is:<BR>\n" );
document.write( ".<BR>\n" );
document.write( "2x - 1<BR>\n" );
document.write( "-x + 1<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "+x + 0 <BR>\n" );
document.write( ".<BR>\n" );
document.write( "and the answer would be written as just x since the plus sign is understood and the zero need<BR>\n" );
document.write( "not be shown.<BR>\n" );
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document.write( "In summary, the addition gives you an answer of just x.<BR>\n" );
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document.write( "Hope this helps you to understand the problem a little better.<BR>\n" );
document.write( ".\r<BR>\n" );
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document.write( " </SPAN>\n" );
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