How to subtract matrices

Practice Questions

ACT Math › How to subtract matrices

Questions

4

1

If $\begin{bmatrix} a&b\ c&d \end{bmatrix} + \begin{bmatrix} 3&14\ 12&4 \end{bmatrix} = \begin{bmatrix} 19&2\ 4&5 \end{bmatrix}$ , what is ?

2

If $\begin{bmatrix} 12& 14\ -4 & -2 \ 3 & 3 \end{bmatrix}- \begin{bmatrix} 9& -1\ 4 & -5 \ 6 & -9 \end{bmatrix}=\begin{bmatrix} a&b\c&d\e&f\end{bmatrix}$ , then what is the value of ?

3

Given the following matrices, what is the product of and ?

$\begin{bmatrix} 1&-4 \ 2&x \end{bmatrix} - \begin{bmatrix} y&4 \ 8&1 \end{bmatrix} = \begin{bmatrix} -8&-8 \ -6&4 \end{bmatrix}$

4

$\begin{bmatrix} 0&5 \ 3&4 \end{bmatrix} - \begin{bmatrix} 2&-1 \ 4& 3 \end{bmatrix}$

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