ACT 2018 June(A11) Math Question 5 Explanation - ACT Helper

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2018 June(A11) Math Question 5
Matrices
- Addition & Subtraction
Choice A
$\begin{array}{r} [\begin{array}{c} 9 & 8 \\ - 4 & 7 \end{array}] + [\begin{array}{c} - 6 & 6 \\ 5 & 4 \end{array}] = [\begin{array}{c} 9 - 6 & 8 + 6 \\ - 4 + 5 & 7 + 4 \end{array}] = [\begin{array}{c} 3 & 14 \\ 1 & 11 \end{array}] \end{array}$
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