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		<id>https://wiki.mattekollen.se/index.php?action=history&amp;feed=atom&amp;title=1.4_L%C3%B6sning_8c</id>
		<title>1.4 Lösning 8c - Versionshistorik</title>
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		<updated>2026-11-05T14:33:18Z</updated>
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	<entry>
		<id>https://wiki.mattekollen.se/index.php?title=1.4_L%C3%B6sning_8c&amp;diff=12031&amp;oldid=prev</id>
		<title>Taifun den 3 augusti 2014 kl. 22.03</title>
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				<updated>2014-08-03T22:03:21Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny sida&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Vi sätter in &amp;lt;math&amp;gt; x=2\, &amp;lt;/math&amp;gt; i ekvationen och löser ekvationen för &amp;lt;math&amp;gt; z\, &amp;lt;/math&amp;gt; som obekant:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt; \begin{array}{rcl}  {15\cdot 2^2 - 2\cdot 2 - 6 \over 6} &amp;amp; = &amp;amp; {2 - 3\,z \over 2} - {z - 2\cdot 2^2 \over 3} - {z \over 2} \\&lt;br /&gt;
                                    {15\cdot 4 - 4 - 6 \over 6} &amp;amp; = &amp;amp; {2 - 3\,z \over 2} - {z - 2\cdot 4 \over 3} - {z \over 2}   \\&lt;br /&gt;
                                           {60 - 4 - 6 \over 6} &amp;amp; = &amp;amp; {2 - 3\,z \over 2} - {z - 8 \over 3} - {z \over 2}          \\&lt;br /&gt;
                                                   {50 \over 6} &amp;amp; = &amp;amp; {2 - 3\,z \over 2} - {z - 8 \over 3} - {z \over 2}          \\&lt;br /&gt;
                                                   {25 \over 3} &amp;amp; = &amp;amp; {2 - 3\,z \over 2} - {z - 8 \over 3} - {z \over 2} \qquad\quad| \;   \cdot 6  \\&lt;br /&gt;
                                                             50 &amp;amp; = &amp;amp; 3\,(2 - 3\,z) - 2\,(z - 8) - 3\,z                           \\&lt;br /&gt;
                                                             50 &amp;amp; = &amp;amp; 6 - 9\,z - 2\,z + 16 - 3\,z                                 \\&lt;br /&gt;
                                                             50 &amp;amp; = &amp;amp; - 14\,z + 22                                                \\&lt;br /&gt;
                                                          14\,z &amp;amp; = &amp;amp; 22 - 50                                                     \\&lt;br /&gt;
                                                          14\,z &amp;amp; = &amp;amp; - 28                                                        \\&lt;br /&gt;
                                                              z &amp;amp; = &amp;amp; - 2                                                         \\&lt;br /&gt;
\end{array} &amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

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