After computing the determinants required by Cramers Rule fo

After computing the determinants required by Cramer\'s Rule for a system of three equations in three variables, we obtained the following values. What\'s the solution to the system?

A. (5, 4) B. (5.-1) C. (-5,4) 19. After computing the determinants requir variables, we obtained the following values An (6.2.-3) 20 After computing the d min

Solution

we have

D = -1 ,     D_x = 6 ,D_y = 2   and D_z = -5

x = D_x / D     => x = 6 / (-1) = > x = -6

y = D_y / D => y = 2 / (-1) => y = -2

z = D_z / D => z = (-5) / (-1) => z = 5.