Question

11x-9y=2 13x-15y=-2 metodo determinante

Answer 1

11x-9y=2. (1)
13x-15y=-2. (2)

(1) [5] 55x-45y=10
(2) [-3] -39x+45=6
_________
16x / 16

X=16\16
X=1
Remplaxando X
11(1)-9y=2
11-2=9y
9=9y
Y=9\9
Y=1