Question

URGENTE
Pfvr gente........:.:

Answer 1

a) {2x - 3y = 4

{x - y = 3

x - y = 3 . (-2)

-2x + 2y = - 6

{2x - 3y = 4

{-2x + 2y = - 6

- y = - 2 . (-1)

y = 2

x - y = 3

x - 2 = 3

x = 3 + 2

x = 5

S = {5 , 2}