Question

{x + y = 7
{x − y = 5

Answer 1

×+y=7

×-y=5

2× =12

×=12÷2= 6 Valor de x

×-y=2

6-y=2

6=2+y

6-2=y

4=y Valor de y

(6,4)

ESPERO TER AJUDADO

Answer 2

x = 6
y = 4


tmj amigo!!!!