Respuesta :
Answer:
3x - 4y
Step-by-step explanation:
sum means addition so:
(2x - 5y) + (x + y) =
2x + x = 3x
-5y + y = -4y
put those two answers together and you get 3x - 4y
Answer:
3x - 4y
Step-by-step explanation:
sum means addition so:
(2x - 5y) + (x + y) =
2x + x = 3x
-5y + y = -4y
put those two answers together and you get 3x - 4y
