document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=92703>Question 92703</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation w+(3)=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67480 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=67480\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given the equation:<BR>\n" );
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document.write( "w + (3) = 9<BR>\n" );
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document.write( "To solve this equation means to find the value of w that will make both sides of this<BR>\n" );
document.write( "equation equal to each other.<BR>\n" );
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document.write( "For this equation you can ask yourself, \"What number when I add three to it will equal 9?\"<BR>\n" );
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document.write( "In asking this question you may be able to do the math in your head to come up with the<BR>\n" );
document.write( "answer that if w was 6 you could add 3 to it and the answer would be 9, the same as the<BR>\n" );
document.write( "right side of the equation.<BR>\n" );
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document.write( "But to solve the equation using a more general approach we need to get w by itself on<BR>\n" );
document.write( "one side of the equation and everything else on the other side. Then we will know what<BR>\n" );
document.write( "w is equal to.  <BR>\n" );
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document.write( "So what we need to do in this problem is to get rid of the + 3 on the left side so that<BR>\n" );
document.write( "we just have w by itself. We can do this by subtracting 3 from the left side. But in <BR>\n" );
document.write( "equations, whatever we do to one side, we also have to do to the other side to keep the<BR>\n" );
document.write( "equation in balance. So if we subtract 3 from one side we must also subtract 3 from the<BR>\n" );
document.write( "other side. When we subtract 3 from the left side and from the right side, the equation<BR>\n" );
document.write( "becomes:<BR>\n" );
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document.write( "w + 3 - 3 = 9 - 3<BR>\n" );
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document.write( "Notice on the left side that the + 3 and the - 3 cancel each other out by becoming<BR>\n" );
document.write( "zero.  Therefore, on the left side we are just left with w. On the right side the <BR>\n" );
document.write( "subtraction of 3 from 9 results in 6. And what we are left with is just:<BR>\n" );
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document.write( "w = 6<BR>\n" );
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document.write( "And that's the answer to the problem.  You can check the answer by returning to the original<BR>\n" );
document.write( "problem of:<BR>\n" );
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document.write( "w + 3 = 9<BR>\n" );
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document.write( "and replace w with your answer of 6 to get:<BR>\n" );
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document.write( "6 + 3 = 9<BR>\n" );
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document.write( "This obviously is true because 6 + 3 does equal 9. So our answer is correct.<BR>\n" );
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document.write( "One additional comment. Don't let the parentheses in +(3) confuse you. Since they are<BR>\n" );
document.write( "preceded by a + sign, you can just erase the parentheses to get + 3. If there were a<BR>\n" );
document.write( "-(3) then in removing the parentheses you would get - 3.<BR>\n" );
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document.write( "Hope this helps you to understand the problem.<BR>\n" );
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