Differences

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--- jancraats:hoofdstuk_11 [2012/05/21 19:58] – created jerry
+++ jancraats:hoofdstuk_11 [2022/09/01 13:44] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
 $$
-f(x) = \begin{dcases*}
+\begin{cases}
-       x  & when $x$ is even\\
+x + 3y = 4 \\
-        -x & when $x$ is odd
+x - 2y = 6
-      \end{dcases*}
+\end{cases}
 $$
+$$
+\frac
+{
+  \begin{cases}
+x + 9y = 12\ (3x) \\
+x - 4y = 12\ (2x)
+  \end{cases}
+}
+{
++ (9y - -4y) = 0 \\
+y = 0 \\
+  y = \frac{0}{13} \\
+  y = 0
+} -
+$$
+$$
+\begin{split}
+x + 3 \cdot 0 & = 4 \\
+x & = \frac{4}{2} \\
+x & = 2
+\end{split}
+$$