Given. R=0 3 -4 5 and S=-2 -8 0 2. what is X if X+R=S?

Question 1

Question 2

Answer:

$X =\left[\begin{array}{cc}-2 &-11\\4 &-3\end{array}\right]$

Explanation:

Given

$R =\left[\begin{array}{cc}0&3\\-4&5\end{array}\right]$

$S =\left[\begin{array}{cc}-2&-8\\0&2\end{array}\right]$

X + R = S

Required

Find X

X + R = S

Make X the subject

X = S - R

Substitute values for S and R

$X =\left[\begin{array}{cc}-2&-8\\0&2\end{array}\right] - \left[\begin{array}{cc}0&3\\-4&5\end{array}\right]$

This can be rewritten as:

$X =\left[\begin{array}{cc}-2 -0 &-8 - 3\\0 - (-4) &2 - 5\end{array}\right]$

$X =\left[\begin{array}{cc}-2 &-11\\4 &-3\end{array}\right]$

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