Respuesta :

Answer:

x=6

Step-by-step explanation:

We can use eliminate to solve.  Add the equations together

x - y = 4

x + y = 8

-------------------

2x = 12

Divide each side by 2

2x/2 =12/2

x = 6

hello :  

X - y = 4...(1)

x + y = 8...(2)

(1)+(2) :2x= 12

The x-coordinate of the solution to the system shown is __6___.