Question

×+3y=6 6x-9y=12 metodo de cramer

Answer 1

Respuesta:

x = 10/3

y = 8/9

Explicación paso a paso:

x + 3y = 6

6x - 9y = 12

         

Δs =  1   3

        6  -9

Δs = (1 . -9) - (6 . 3) = -9 - 18 = - 27

Δx = 6   3

      12   -9

Δx = (6 . -9) - (12 . 3) = -54 - 36 = -90

Δy = 1   6

       6   12

Δy = (1 . 12) - (6 . 6) = 12 - 36 = -24

x = Δx/Δs = -90/-27 = 10/3

y = Δy/Δs = -24/-27 = 8/9