Respuesta :

y - 1/3x = - 10 (re-write)
y + 2x = 4
--------------------subtract
-2 1/3x = -14
 -7/3x = -14
x = -14 (-3/7) 
x = 6

2x + y = 4
2(6) + y = 4
y = 4 - 12
y = -8

(6, -8)
answer
C. (6, -8) (third choice)