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For subtracting matrices, their dimension should be equal.
First write the dimension of the matrix.
The first matrix is
The matrix has 4 row and 1 columns, so dimensions of matrix are .
The second matrix is
The matrix has 4 row and 1 columns, so dimensions of matrix are .
The dimensions of matrix are equal. The operation of addition is possible.
Add the corresponding elements.
(Subtract corresponding elements)
(Product of two same signs is positive)
(Simplify)
The solution is .
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