Question

Which matrix represents the system of equation below? { 8x-9y+13z=11 -8x-5y+5z=15 3x+4y-8z=-10

Answer 1

In this question , we have the following equations

$8x-9y+13z=11 \\ -8x-5y+5z=15 \\ 3x+4y-8z=-10$

And we have to put these in matrix form.

We make a matrix for the numbers of the left side, a matrix for the variables x , y ,z , and a matrix for the numbers on the right side , that is

$\begin{bmatrix} 8 & -9 & 13\\ -8 & -5 &5 \\ 3 & 4 & -8 \end{bmatrix} *\begin{bmatrix} x\\ y \\ z \ \end{bmatrix} = \begin{bmatrix} 11\\ 15 \\ -10 \end{bmatrix}$

And that's the required matrix.

Answer 2

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