If $\begin{bmatrix} x & 2 & 0 \end{bmatrix} \begin{bmatrix} 5 \\ -1 \\ x \end{bmatrix} = \begin{bmatrix} 3 & 1 \end{bmatrix} \begin{bmatrix} -2 \\ x \end{bmatrix}$, then value of $x$ is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → -1 ##
We have,
$(x)(5) + (2)(-1) + (0)(x) = (3)(-2) + (1)(x)$
$5x - 2 = -6 + x$
$4x = -4$
$x = -1$