Question

ajutati maaa ex 5....​

Answer 1

{-x-6y = - 20

{-4x+y = - 5

{x = 20-6y

{-4x+y = -5

-4(20-6y) = -5

-80+24y+y = -5

-80+25y = -5

25y = -5+80

25y = 75

y = 3

(x,y) = (2,3)