Question

A= [25 12 13],B=[5 -8 3]e C=[-1 10 -1], então a matriz X que A+B-C-X=0 e ?

Answer 1

$A= \left[\begin{array}{ccc}25&12&13\\\end{array}\right] \\ B = \left[\begin{array}{ccc}5&-8&3\\\end{array}\right] \\ C = \left[\begin{array}{ccc}-1&10&-1\\\end{array}\right] \\ X = \left[\begin{array}{ccc}x&y&z\\\end{array}\right] \\ 25 + 5 - 1 + x = 0\\ x = -29\\ 12 - 8 + 10 + y = 0\\ y = -14\\ 13 + 3 - 1 + z = 0\\ z = -15\\ X = \left[\begin{array}{ccc}-29&-14&-15\\\end{array}\right]$