Question

How can you represent the system of equations with a matrix?

11x - 12y = 7
5x + 12y = -7

Answer 1

take the linear coefients easy

11,-12, 7
5,12,-7
so

$\left[\begin{array}{ccc}11&-12&7\\5&12&-7\end{array}\right]$ or you could do also
$\left[\begin{array}{ccc}11&-12\\5&12\end{array}\right] \left[\begin{array}{ccc}7\\-7\end{array}\right]$

Answer 2

Answer:

1. (5,0)

2. 20 of type A;20 of type B

3. no solution

4. -5

5.D

11 -12 7

5 12 -7

6. (-6,8)

100% right i gotchu bbs <3