document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=192154>Question 192154</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to write the equation for the following:  3000 books in three piles. Pile 1 has 10 more books than pile 2. Pile 2 has twice as many as pile 3. How many in each pile?  This is my fourth graders homework and I can't remember how to make the into an equation to be solved. Thanks so much for your help!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #144188 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=144188\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x, y, and z be the number of books in piles 1, 2, and 3.\r<BR>\n" );
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document.write( "Since there are \"3000 books in three piles\", this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By%2Bz=3000 ALIGN=MIDDLE  ALT=\"x%2By%2Bz=3000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Because \" Pile 1 has 10 more books than pile 2\", this tells us that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=y%2B10 ALIGN=MIDDLE  ALT=\"x=y%2B10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Also, since \"Pile 2 has twice as many as pile 3\", this gives the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2z ALIGN=MIDDLE  ALT=\"y=2z\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By%2Bz=3000 ALIGN=MIDDLE  ALT=\"x%2By%2Bz=3000\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%2B10%29%2By%2Bz=3000 ALIGN=MIDDLE  ALT=\"%28y%2B10%29%2By%2Bz=3000\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=y%2B10 ALIGN=MIDDLE  ALT=\"x=y%2B10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2z%2B10%2B2z%2Bz=3000 ALIGN=MIDDLE  ALT=\"2z%2B10%2B2z%2Bz=3000\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2z ALIGN=MIDDLE  ALT=\"y=2z\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2B5z=3000 ALIGN=MIDDLE  ALT=\"10%2B5z=3000\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the left side.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5z=3000-10 ALIGN=MIDDLE  ALT=\"5z=3000-10\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10 ALIGN=MIDDLE  ALT=\"10\"   DISABLED_style= \"max-width:90%; height:auto;\" > from both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5z=2990 ALIGN=MIDDLE  ALT=\"5z=2990\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the right side.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%282990%29%2F%285%29 ALIGN=MIDDLE  ALT=\"z=%282990%29%2F%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" > to isolate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=598 ALIGN=MIDDLE  ALT=\"z=598\"   DISABLED_style= \"max-width:90%; height:auto;\" > Reduce. So there are 598 books in the third pile\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2z ALIGN=MIDDLE  ALT=\"y=2z\"   DISABLED_style= \"max-width:90%; height:auto;\" > Go back to the third equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2%28598%29 ALIGN=MIDDLE  ALT=\"y=2%28598%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=598 ALIGN=MIDDLE  ALT=\"z=598\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1196 ALIGN=MIDDLE  ALT=\"y=1196\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply. So there are 1,196 books in the second pile\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=y%2B10 ALIGN=MIDDLE  ALT=\"x=y%2B10\"   DISABLED_style= \"max-width:90%; height:auto;\" > Go back to the first equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1196%2B10 ALIGN=MIDDLE  ALT=\"x=1196%2B10\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1196 ALIGN=MIDDLE  ALT=\"y=1196\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1206 ALIGN=MIDDLE  ALT=\"x=1206\"   DISABLED_style= \"max-width:90%; height:auto;\" > Add. So there are 1,206 books in the first pile.\r<BR>\n" );
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document.write( "To check the answers, simply add up the books to get 3,000.  </SPAN>\n" );
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