Answer:
The augmented matrix is:
[tex]\left[\begin{array}{cccc}-2&-2&5&1\\-5&-5&7&4\end{array}\right][/tex]
Step-by-step explanation:
This system of two equations with three unknowns will generate an augmented matrix that consists of two rows and four columns:
[tex]\left[\begin{array}{cccc}-2&-2&5&1\\-5&-5&7&4\end{array}\right][/tex]
