What is the solution of the system of equations? (1 point) (5, –2, 7) (–5, 2, 7) (5, 2, –7) no solution what is element a_23 in matrix a? (1 point) –5 3 –4 8

Part (a)
The system of equations may be written in matrix form, as
[A]{x} = {B}
where


In order for the system of equations to have a solution,


Evaluate det[A].
det[A] = -3(-30 + 4) + 4(10 - 10) - 3(-4 + 30) = 0
Because det[A] = 0, there is no solution.

No solution

Part (b)
The given matrix is

The element a₂₃ is -5.

-5

Cis your correct answer