Question

Write the augmented matrix for each system of equations.

9x - 4y - 5z = 9
7x + 4y – 4z = -1
6x – 6y+z=-5

Answer 1

see below

Explanation:

List the coefficients and constant for an equation in one row of the matrix. The variables should be in the same order. Any missing terms are replaced by zero.

`\left[\begin{array}c9&-4&-5&9\\7&4&-4&-1\\6&-6&1&-5\end{array}\right]`