Question

x+y=50 con x-y=10 el metodo cramer

Answer 1

As. (-2) 1 1 1(-1) - 1(1)
1 -1 -1 -1
-2
Ax. 50 1 50(-1) - 10(1)
-60 10 -1 -50 -10
;; -60
Ay. 50 1 50(1) - 10(1)
40 10 1 50-10
40
X ; Ax
As
X. -60/-2 30R//
Y. Ay/As 40/-2 -20R//