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Mathematics
Mathematics
Problem
If
[
x
3
1
2
]
=
[
5
3
1
2
]
,
\begin{bmatrix}x&3\\1&2\end{bmatrix}=\begin{bmatrix}5&3\\1&2\end{bmatrix},
[
x
1
3
2
]
=
[
5
1
3
2
]
,
find the value of
x
x
x
.
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