Question

Resolver el siguiente sistema de ecuaciones por el método de Cramer.
(2x - y + 5z = 16
x - 6y + 2z = 9
(3x + 4y - 2= 32​

Answer 1

Explicación paso a paso:

2x -y +5z = 16

2x -12y +4z = 18

___________

11y +z = -2

3x - 18y +6z = 27

3x +4y -2z = 32

_____________

-22y +8z = -5

6x -3y +15z = 48

6x +8y -4z = 64

______________

-11y + 19 z = -16

22y + 2z =-4

-22y +8z =-5

_____________

z = -9/10

11y -9/10 =-2

11y = -2 +9/10

11y = - 11/10

y = -1 /10

2x +1/10 +5 (-9/10) = 16

2x +1/10 + -9/2 = 16

2x -44/10 =16

2x = 16 +44/10

2x = 204/ 10

x = 102/10 = 51/5

x = 51/5