Question 119196
Start with the given matrix equation

<pre>


x+[2 1 8] =[6 -1 8]
  [4 3 0]  [-5 2 -7]


</pre>


Subtract the matrix <pre>[2 1 8]
[4 3 0]</pre> from both sides


<pre>


x =[6 -1 8]-[2 1 8]
   [-5 2 -7][4 3 0]


</pre>


Combine the matrices

<pre>


x =[6-2 -1-1 8-8]
   [-5-4 2-3 -7-0]


</pre>


Subtract


<pre>


x =[4  -2  0]
   [-9 -1 -7]


</pre>



--------------------

Answer:


So the matrix X is


<pre>


x =[4  -2  0]
   [-9 -1 -7]


</pre>