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More solving of linear equations

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Dan Buch 2012-04-03 16:45:29 -04:00
parent 5d9ad7d00f
commit 88b6bf969d
1 changed files with 27 additions and 0 deletions
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27
math-replay/algebra/linear-equations-2.haml
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@ -23,3 +23,30 @@
x & = & \frac{-1}{2} \\ x & = & \frac{-1}{2} \\
\end{eqnarray} \end{eqnarray}
$$ $$
%h2 Solve for $x$ (again):
#solve-for-x-02.solution
:escaped
$$
\begin{eqnarray}
10x - 2 & = & 8 \\
10x - 2 + 2 & = & 8 + 2 \\
10x & = & 10 \\
10x \over 10 & = & 10 \over 10 \\
x & = & 10 \over 10 \\
x & = & 1 \\
\end{eqnarray}
$$
%h2 Solve for $x$ (again):
#solve-for-x-03.solution
:escaped
$$
\begin{eqnarray}
6x - 4 & = & 3 \\
6x - 4 + 4 & = & 3 + 4 \\
6x & = & 7 \\
6x \over 6 & = & 7 \over 6 \\
x & = & 7 \over 6 \\
\end{eqnarray}
$$