Question

помогите решить
(5x – 3y + 5) – (3x – y – 4) =
(4x – 5y – 8) + (2x + 3y + 3) =
(3x – 2y + 4) – (3x – 4y – 5) =
(7x – 4y – 6) – (2x – 4y + 6) =
(x – 4y – 7) + (4x – 8 – 5y) =
(3x – 5y + 6) – (9x – 5y + 6) =
​

Answer 1

Ответ:

1) 2х2у+9

2)6х-2у-5

3)2у+9

4)5х-12

5)5х-9у-15

не знаю