Question

Perform the Indicated operations. If the matrix does not exist, write impossible.

Answer 1

\[2\left[\begin{matrix}-1 \\ 5 \\ -6\end{matrix}\right]+4\left[\begin{matrix} -3x \\ 2 \\ x\end{matrix}\right]-3\left[\begin{matrix}x-2 \\ 3 \\ 1\end{matrix}\right]\]

Answer 2

I don't understand what to do.

Answer 3

nyan cat cant do matrix problems

Answer 4

the number in front of a matrix means multiply everything in matrix by that number. To add two matrices they must have the same dimensions (here all 3 x 1) , and you add the same places together.

Answer 5

what about the x values?

Answer 6

You treat x like any other number. For Example, the bottom row should give you:
\[2\cdot (-6)+4\cdot x-3\cdot 1=-15+4x\]
and that is all you can do, unless you have some other information telling you what x is...