Question 306763
[A]={{{(matrix(3,2,3,-6,4,4,8,9))}}}
[B]={{{(matrix(3,2,3,-6,2,0,2,-1))}}}
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[B]-[X]=3[A]
[X]=[B]-3[A]
[X]={{{(matrix(3,2,3,-6,4,4,8,9))-3*(matrix(3,2,3,-6,2,0,2,-1))}}}
[X]={{{(matrix(3,2,3,-6,4,4,8,9))-(matrix(3,2,9,-18,6,0,6,-3))}}}
[X]={{{(matrix(3,2,3-9,-6-18,4-6,4-0,8-6,9-(-3)))}}}
[X]={{{(matrix(3,2,-6,-24,-2,4,2,12))}}}