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Combine scalar multiples of matrices

Question 1 of 8

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Consider the matrices \(M\) and \(B\) shown below

M = \begin{bmatrix} 9 & 12 \\ 2 & 9 \end{bmatrix}

B = \begin{bmatrix} 5 & 5 \\ 10 & 5 \end{bmatrix}