wif8u4 wif8u4
  • 11-11-2021
  • Mathematics
contestada

Can someone help!!!!

Can someone help class=

Respuesta :

anasweeney43 anasweeney43
  • 14-11-2021

Answer:

X = 2/3 and Y = 3

Step-by-step explanation:

Matrix: 3 -1 -1

-3 5 13

Main determinant:

| 3 -1 |

| -3 5| = 12

Dx: |-1 -1|

|13. 5| = 8

X = 8/12 = 2/3

Determinant y:

|3 -1|

|-3 13| = 36

Y = 36/12 = 3

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