Question

Resolva a equação matricial:
$2x = \left[\begin{array}{ccc}4&2&-3\\1&0&6\\-2&2&8\end{array}\right]$

Answer 1

Multiplique ambos os lados por 1/2 (pra retirar o 2x, e já obter a resposta direta com a matriz em si)

$\frac{1}{2} * 2x = \left[\begin{array}{ccc}4&2&-3\\1&0&6\\-2&2&8\end{array}\right] * \frac{1}{2}\\\\\\x =  \left[\begin{array}{ccc}4&2&-3\\1&0&6\\-2&2&8\end{array}\right] * \frac{1}{2}\\\\\\\\x =  \left[\begin{array}{ccc}2&1&-3/2\\1/2&0&3\\-1&1&4\end{array}\right]$