Respuesta :

Step-by-step explanation:

→ 4x ― 2y = ― 10 ( 1 )

And,

→ 3x ― 3y = –9 ( 2 )

Subtracting (2) from (1).

⠀⠀⠀4x ― 2y = ― 10

⠀⠀⠀3x ― 3y = ― 9

⠀⠀(-)⠀⠀(+)⠀⠀(+)

_________________

⠀⠀⠀x + y = ― 1⠀⠀⠀⠀⠀⠀[Answer]

_________________