Question

2x – y = 3 – x – y = – 3

Answer 1

2x - y = - 3 - x - y = -6

2x - y = - 3 x = y = 6

3x= 3

x=1

2 . 1 - y = - 3

y= 5

( x,y) = (1,5)

2 . 1 - 5 = 3 - 1 - 5 = - 3

SOLUÇÃO:

(x,y) = (1,5)