Find the Values of the Variables for Which the Statement

Multiple Choice

Find the values of the variables for which the statement is true, if possible.
- $$\left[ \begin{array} { r r } 6 & - 2 \\x & 0\end{array} \right] = \left[ \begin{array} { c c } \mathrm { m } - 4 & \mathrm { n } + 4 \\8 & 0\end{array} \right]$$

A) $\mathrm { m } = - 6 ; \mathrm { n } = 10 ; \mathrm { x } = 0$
B) $\mathrm { m } = 10 ; \mathrm { n } = - 6 ; \mathrm { x } = 8$
C) $\mathrm { m } = 6 ; \mathrm { n } = - 2 ; \mathrm { x } = 8$
D) $\mathrm { m } = - 10 ; \mathrm { n } = + 6 ; \mathrm { x } = - 8$