The system

x+2y=5
3y+z=1
2x-z=8

can be represented by a matrix equation. What will be the dimensions of the coefficient matrix? Explain.

Thank you:)

Question

The system 

x+2y=5 
3y+z=1
2x-z=8

can be represented by a matrix equation. What will be the dimensions of the coefficient matrix? Explain. 

Thank you:)

anonymous · Answer

$$\left[\begin{matrix}1 & 2 & 0\ 0 & 3 & 1\ 2 & 0 & -1\end{matrix}\right]\ \left[\begin{matrix}x \ y \z\end{matrix}\right] = \left[\begin{matrix}5 \ 1 \ 8\end{matrix}\right]$$

anonymous · Answer

not sure which parts needs explanations so please ask :)

anonymous · Answer

Thank you for showing me the matrix. I needed to find out the matrix dimension that was formed from that system of equations, and now I am able to answer that question. Thank you so veeeerrry much! =)

anonymous · Answer

glad i could help ^_^

don't hesitate to ask follow-up questions

anonymous · Answer

Wow! Thanks you're awesome!! =)